72872586 has 12 divisors (see below), whose sum is σ = 157890642. Its totient is φ = 24290856.

The previous prime is 72872567. The next prime is 72872623. The reversal of 72872586 is 68527827.

It can be written as a sum of positive squares in only one way, i.e., 38825361 + 34047225 = 6231^2 + 5835^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2024221 + ... + 2024256.

Almost surely, 2^72872586 is an apocalyptic number.

72872586 is an abundant number, since it is smaller than the sum of its proper divisors (85018056).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

72872586 is a wasteful number, since it uses less digits than its factorization.

72872586 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4048485 (or 4048482 counting only the distinct ones).

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

The square root of 72872586 is about 8536.5441485416. The cubic root of 72872586 is about 417.6906244615.

The spelling of 72872586 in words is "seventy-two million, eight hundred seventy-two thousand, five hundred eighty-six".