72487965 has 32 divisors (see below), whose sum is σ = 130896000. Its totient is φ = 33931520.

The previous prime is 72487901. The next prime is 72487979. The reversal of 72487965 is 56978427.

72487965 = T₂₄₄ + T₂₄₅ + ... + T₇₆₅.

It is not a de Polignac number, because 72487965 - 2⁶ = 72487901 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2790 + ... + 12359.

It is an arithmetic number, because the mean of its divisors is an integer number (4090500).

Almost surely, 2^72487965 is an apocalyptic number.

It is an amenable number.

72487965 is a deficient number, since it is larger than the sum of its proper divisors (58408035).

72487965 is a wasteful number, since it uses less digits than its factorization.

72487965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15197.

The product of its digits is 846720, while the sum is 48.

The square root of 72487965 is about 8513.9864340977. The cubic root of 72487965 is about 416.9544717358.

The spelling of 72487965 in words is "seventy-two million, four hundred eighty-seven thousand, nine hundred sixty-five".