64931952 has 20 divisors (see below), whose sum is σ = 167741000. Its totient is φ = 21643968.

The previous prime is 64931941. The next prime is 64931953. The reversal of 64931952 is 25913946.

It is a self number, because there is not a number n which added to its sum of digits gives 64931952.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64931953) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 676327 + ... + 676422.

It is an arithmetic number, because the mean of its divisors is an integer number (8387050).

Almost surely, 2^64931952 is an apocalyptic number.

It is an amenable number.

64931952 is an abundant number, since it is smaller than the sum of its proper divisors (102809048).

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

64931952 is a wasteful number, since it uses less digits than its factorization.

64931952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1352760 (or 1352754 counting only the distinct ones).

The product of its digits is 58320, while the sum is 39.

The square root of 64931952 is about 8058.0364853977. The cubic root of 64931952 is about 401.9322179720.

The spelling of 64931952 in words is "sixty-four million, nine hundred thirty-one thousand, nine hundred fifty-two".