872137539 has 48 divisors (see below), whose sum is σ = 1600528384. Its totient is φ = 445176000.

The previous prime is 872137507. The next prime is 872137559. The reversal of 872137539 is 935731278.

It is a happy number.

872137539 is a `hidden beast` number, since 87 + 2 + 1 + 37 + 539 = 666.

It is not a de Polignac number, because 872137539 - 2⁵ = 872137507 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 872137494 and 872137503.

It is not an unprimeable number, because it can be changed into a prime (872137559) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 8214 + ... + 42564.

Almost surely, 2^872137539 is an apocalyptic number.

872137539 is a deficient number, since it is larger than the sum of its proper divisors (728390845).

872137539 is a wasteful number, since it uses less digits than its factorization.

872137539 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34408 (or 34405 counting only the distinct ones).

The product of its digits is 317520, while the sum is 45.

The square root of 872137539 is about 29531.9748577707. The cubic root of 872137539 is about 955.4214632317.

The spelling of 872137539 in words is "eight hundred seventy-two million, one hundred thirty-seven thousand, five hundred thirty-nine".