72596987 has 4 divisors (see below), whose sum is σ = 76867416. Its totient is φ = 68326560.

The previous prime is 72596959. The next prime is 72597013. The reversal of 72596987 is 78969527.

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 72596987 - 2⁸ = 72596731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72596087) 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, 2135189 + ... + 2135222.

It is an arithmetic number, because the mean of its divisors is an integer number (19216854).

Almost surely, 2^72596987 is an apocalyptic number.

72596987 is a deficient number, since it is larger than the sum of its proper divisors (4270429).

72596987 is a wasteful number, since it uses less digits than its factorization.

72596987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4270428.

The product of its digits is 1905120, while the sum is 53.

The square root of 72596987 is about 8520.3865522639. The cubic root of 72596987 is about 417.1634003959.

The spelling of 72596987 in words is "seventy-two million, five hundred ninety-six thousand, nine hundred eighty-seven".