72508867 has 4 divisors (see below), whose sum is σ = 72528480. Its totient is φ = 72489256.

The previous prime is 72508853. The next prime is 72508873. The reversal of 72508867 is 76880527.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 72508867 - 2¹⁵ = 72476099 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72508967) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2392 + ... + 12277.

It is an arithmetic number, because the mean of its divisors is an integer number (18132120).

Almost surely, 2^72508867 is an apocalyptic number.

72508867 is a deficient number, since it is larger than the sum of its proper divisors (19613).

72508867 is a wasteful number, since it uses less digits than its factorization.

72508867 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19612.

The product of its (nonzero) digits is 188160, while the sum is 43.

The square root of 72508867 is about 8515.2138552123. The cubic root of 72508867 is about 416.9945443411.

The spelling of 72508867 in words is "seventy-two million, five hundred eight thousand, eight hundred sixty-seven".