872531087 has 2 divisors, whose sum is σ = 872531088. Its totient is φ = 872531086.

The previous prime is 872531057. The next prime is 872531119. The reversal of 872531087 is 780135278.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 872531087 - 2²² = 868336783 is a prime.

It is a super-2 number, since 2×872531087² = 1522620995562803138, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (872531057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 436265543 + 436265544.

It is an arithmetic number, because the mean of its divisors is an integer number (436265544).

Almost surely, 2^872531087 is an apocalyptic number.

872531087 is a deficient number, since it is larger than the sum of its proper divisors (1).

872531087 is an equidigital number, since it uses as much as digits as its factorization.

872531087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 94080, while the sum is 41.

The square root of 872531087 is about 29538.6371892814. The cubic root of 872531087 is about 955.5651514485.

The spelling of 872531087 in words is "eight hundred seventy-two million, five hundred thirty-one thousand, eighty-seven".