65874690 has 96 divisors (see below), whose sum is σ = 202116096. Its totient is φ = 14567040.

The previous prime is 65874673. The next prime is 65874701. The reversal of 65874690 is 9647856.

65874690 is a `hidden beast` number, since 6 + 587 + 4 + 69 + 0 = 666.

65874690 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×65874690² = 8678949565192200, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17844 + ... + 21216.

It is an arithmetic number, because the mean of its divisors is an integer number (2105376).

Almost surely, 2^65874690 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65874690, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (101058048).

65874690 is an abundant number, since it is smaller than the sum of its proper divisors (136241406).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

65874690 is a wasteful number, since it uses less digits than its factorization.

65874690 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3424 (or 3421 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 65874690 is about 8116.3224430773. The cubic root of 65874690 is about 403.8680785167.

It can be divided in two parts, 65874 and 690, that added together give a square (66564 = 258²).

The spelling of 65874690 in words is "sixty-five million, eight hundred seventy-four thousand, six hundred ninety".