87538863 has 16 divisors (see below), whose sum is σ = 119586816. Its totient is φ = 56933280.

The previous prime is 87538861. The next prime is 87538877. The reversal of 87538863 is 36883578.

It is a happy number.

It is not a de Polignac number, because 87538863 - 2¹ = 87538861 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87538861) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53193 + ... + 54813.

It is an arithmetic number, because the mean of its divisors is an integer number (7474176).

Almost surely, 2^87538863 is an apocalyptic number.

87538863 is a deficient number, since it is larger than the sum of its proper divisors (32047953).

87538863 is a wasteful number, since it uses less digits than its factorization.

87538863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2054.

The product of its digits is 967680, while the sum is 48.

The square root of 87538863 is about 9356.2205510559. The cubic root of 87538863 is about 444.0177180252.

The spelling of 87538863 in words is "eighty-seven million, five hundred thirty-eight thousand, eight hundred sixty-three".