65689794 has 48 divisors (see below), whose sum is σ = 150081984. Its totient is φ = 20724000.

The previous prime is 65689781. The next prime is 65689801. The reversal of 65689794 is 49798656.

65689794 is a `hidden beast` number, since 6 + 568 + 9 + 79 + 4 = 666.

65689794 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 65689794.

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 23 ways as a sum of consecutive naturals, for example, 41029 + ... + 42599.

It is an arithmetic number, because the mean of its divisors is an integer number (3126708).

Almost surely, 2^65689794 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 65689794, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75040992).

65689794 is an abundant number, since it is smaller than the sum of its proper divisors (84392190).

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

65689794 is a wasteful number, since it uses less digits than its factorization.

65689794 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1703 (or 1700 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 54.

The square root of 65689794 is about 8104.9240588669. The cubic root of 65689794 is about 403.4898676763.

The spelling of 65689794 in words is "sixty-five million, six hundred eighty-nine thousand, seven hundred ninety-four".