65674620 has 144 divisors (see below), whose sum is σ = 222899040. Its totient is φ = 15513600.

The previous prime is 65674603. The next prime is 65674633. The reversal of 65674620 is 2647656.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 80776 + ... + 81584.

It is an arithmetic number, because the mean of its divisors is an integer number (1547910).

Almost surely, 2^65674620 is an apocalyptic number.

65674620 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65674620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (111449520).

65674620 is an abundant number, since it is smaller than the sum of its proper divisors (157224420).

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

65674620 is a wasteful number, since it uses less digits than its factorization.

65674620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 876 (or 871 counting only the distinct ones).

The product of its (nonzero) digits is 60480, while the sum is 36.

The square root of 65674620 is about 8103.9879071973. The cubic root of 65674620 is about 403.4587972650.

The spelling of 65674620 in words is "sixty-five million, six hundred seventy-four thousand, six hundred twenty".