87857158 has 8 divisors (see below), whose sum is σ = 131895000. Its totient is φ = 43892160.

The previous prime is 87857113. The next prime is 87857183. The reversal of 87857158 is 85175878.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15088 + ... + 20083.

It is an arithmetic number, because the mean of its divisors is an integer number (16486875).

Almost surely, 2^87857158 is an apocalyptic number.

87857158 is a deficient number, since it is larger than the sum of its proper divisors (44037842).

87857158 is a wasteful number, since it uses less digits than its factorization.

87857158 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36422.

The product of its digits is 627200, while the sum is 49.

The square root of 87857158 is about 9373.2149233867. The cubic root of 87857158 is about 444.5552228073. Note that the first 3 decimals are identical.

The spelling of 87857158 in words is "eighty-seven million, eight hundred fifty-seven thousand, one hundred fifty-eight".