72879065 has 16 divisors (see below), whose sum is σ = 104295168. Its totient is φ = 47800896.

The previous prime is 72879013. The next prime is 72879067. The reversal of 72879065 is 56097827.

It is a cyclic number.

It is not a de Polignac number, because 72879065 - 2⁸ = 72878809 is a prime.

It is a super-2 number, since 2×72879065² = 10622716230548450, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (72879067) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 44462 + ... + 46071.

It is an arithmetic number, because the mean of its divisors is an integer number (6518448).

Almost surely, 2^72879065 is an apocalyptic number.

It is an amenable number.

72879065 is a deficient number, since it is larger than the sum of its proper divisors (31416103).

72879065 is a wasteful number, since it uses less digits than its factorization.

72879065 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90568.

The product of its (nonzero) digits is 211680, while the sum is 44.

The square root of 72879065 is about 8536.9236262251. The cubic root of 72879065 is about 417.7030028583.

The spelling of 72879065 in words is "seventy-two million, eight hundred seventy-nine thousand, sixty-five".