72286587 has 20 divisors (see below), whose sum is σ = 108214656. Its totient is φ = 48088080.

The previous prime is 72286579. The next prime is 72286603. The reversal of 72286587 is 78568227.

It is not a de Polignac number, because 72286587 - 2³ = 72286579 is a prime.

Its product of digits (376320) is a multiple of the sum of its prime factors (1920).

It is not an unprimeable number, because it can be changed into a prime (72286537) 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 19 ways as a sum of consecutive naturals, for example, 65958 + ... + 67044.

Almost surely, 2^72286587 is an apocalyptic number.

72286587 is a deficient number, since it is larger than the sum of its proper divisors (35928069).

72286587 is a wasteful number, since it uses less digits than its factorization.

72286587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1920 (or 1911 counting only the distinct ones).

The product of its digits is 376320, while the sum is 45.

The square root of 72286587 is about 8502.1519040770. The cubic root of 72286587 is about 416.5680014560.

The spelling of 72286587 in words is "seventy-two million, two hundred eighty-six thousand, five hundred eighty-seven".