72965916 has 18 divisors (see below), whose sum is σ = 184441712. Its totient is φ = 24321960.

The previous prime is 72965899. The next prime is 72965923. The reversal of 72965916 is 61956927.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1013380 + ... + 1013451.

Almost surely, 2^72965916 is an apocalyptic number.

It is an amenable number.

72965916 is an abundant number, since it is smaller than the sum of its proper divisors (111475796).

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

72965916 is a wasteful number, since it uses less digits than its factorization.

72965916 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2026841 (or 2026836 counting only the distinct ones).

The product of its digits is 204120, while the sum is 45.

The square root of 72965916 is about 8542.0088972091. The cubic root of 72965916 is about 417.8688644907.

The spelling of 72965916 in words is "seventy-two million, nine hundred sixty-five thousand, nine hundred sixteen".