72469287 has 48 divisors (see below), whose sum is σ = 122428800. Its totient is φ = 40841280.

The previous prime is 72469261. The next prime is 72469303. The reversal of 72469287 is 78296427.

It is not a de Polignac number, because 72469287 - 2²⁰ = 71420711 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72469207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 110653 + ... + 111305.

It is an arithmetic number, because the mean of its divisors is an integer number (2550600).

Almost surely, 2^72469287 is an apocalyptic number.

72469287 is a deficient number, since it is larger than the sum of its proper divisors (49959513).

72469287 is a wasteful number, since it uses less digits than its factorization.

72469287 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 748 (or 745 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 72469287 is about 8512.8894624563. The cubic root of 72469287 is about 416.9186563899.

The spelling of 72469287 in words is "seventy-two million, four hundred sixty-nine thousand, two hundred eighty-seven".