72765016 has 8 divisors (see below), whose sum is σ = 136434420. Its totient is φ = 36382504.

The previous prime is 72764983. The next prime is 72765019. The reversal of 72765016 is 61056727.

It is a tau number, because it is divible by the number of its divisors (8).

It is an alternating number because its digits alternate between odd and even.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72765019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4547806 + ... + 4547821.

Almost surely, 2^72765016 is an apocalyptic number.

It is an amenable number.

72765016 is a deficient number, since it is larger than the sum of its proper divisors (63669404).

72765016 is a wasteful number, since it uses less digits than its factorization.

72765016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9095633 (or 9095629 counting only the distinct ones).

The product of its (nonzero) digits is 17640, while the sum is 34.

The square root of 72765016 is about 8530.2412627076. The cubic root of 72765016 is about 417.4850002380.

The spelling of 72765016 in words is "seventy-two million, seven hundred sixty-five thousand, sixteen".