87311854 has 16 divisors (see below), whose sum is σ = 151913088. Its totient is φ = 36860472.

The previous prime is 87311843. The next prime is 87311867. The reversal of 87311854 is 45811378.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 45604 + ... + 47479.

It is an arithmetic number, because the mean of its divisors is an integer number (9494568).

Almost surely, 2^87311854 is an apocalyptic number.

87311854 is a deficient number, since it is larger than the sum of its proper divisors (64601234).

87311854 is a wasteful number, since it uses less digits than its factorization.

87311854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93159.

The product of its digits is 26880, while the sum is 37.

The square root of 87311854 is about 9344.0812282428. The cubic root of 87311854 is about 443.6335714121.

It can be divided in two parts, 8731 and 1854, that added together give a triangular number (10585 = T₁₄₅).

The spelling of 87311854 in words is "eighty-seven million, three hundred eleven thousand, eight hundred fifty-four".