65192772 has 12 divisors (see below), whose sum is σ = 152116496. Its totient is φ = 21730920.

The previous prime is 65192759. The next prime is 65192789. The reversal of 65192772 is 27729156.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 65192772.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2716354 + ... + 2716377.

Almost surely, 2^65192772 is an apocalyptic number.

It is an amenable number.

65192772 is an abundant number, since it is smaller than the sum of its proper divisors (86923724).

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

65192772 is a wasteful number, since it uses less digits than its factorization.

65192772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5432738 (or 5432736 counting only the distinct ones).

The product of its digits is 52920, while the sum is 39.

The square root of 65192772 is about 8074.2041093844. The cubic root of 65192772 is about 402.4696622068.

The spelling of 65192772 in words is "sixty-five million, one hundred ninety-two thousand, seven hundred seventy-two".