65007992 has 32 divisors (see below), whose sum is σ = 143800320. Its totient is φ = 26961120.

The previous prime is 65007979. The next prime is 65008039. The reversal of 65007992 is 29970056.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16988 + ... + 20459.

It is an arithmetic number, because the mean of its divisors is an integer number (4493760).

Almost surely, 2^65007992 is an apocalyptic number.

65007992 is a gapful number since it is divisible by the number (62) formed by its first and last digit.

It is an amenable number.

65007992 is an abundant number, since it is smaller than the sum of its proper divisors (78792328).

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

65007992 is a wasteful number, since it uses less digits than its factorization.

65007992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37491 (or 37487 counting only the distinct ones).

The product of its (nonzero) digits is 34020, while the sum is 38.

The square root of 65007992 is about 8062.7533758636. The cubic root of 65007992 is about 402.0890539735.

The spelling of 65007992 in words is "sixty-five million, seven thousand, nine hundred ninety-two".