72308995 has 24 divisors (see below), whose sum is σ = 96353712. Its totient is φ = 52050240.

The previous prime is 72308993. The next prime is 72309001. The reversal of 72308995 is 59980327.

It is a happy number.

It is not a de Polignac number, because 72308995 - 2¹ = 72308993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72308993) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 64177 + ... + 65293.

It is an arithmetic number, because the mean of its divisors is an integer number (4014738).

Almost surely, 2^72308995 is an apocalyptic number.

72308995 is a deficient number, since it is larger than the sum of its proper divisors (24044717).

72308995 is a wasteful number, since it uses less digits than its factorization.

72308995 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1251 (or 1240 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 72308995 is about 8503.4695859984. The cubic root of 72308995 is about 416.6110407519.

The spelling of 72308995 in words is "seventy-two million, three hundred eight thousand, nine hundred ninety-five".