87912718 has 8 divisors (see below), whose sum is σ = 132631848. Its totient is φ = 43702104.

The previous prime is 87912709. The next prime is 87912731. The reversal of 87912718 is 81721978.

It is a happy number.

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

It is a super-2 number, since 2×87912718² = 15457291972295048, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 126696 + ... + 127387.

It is an arithmetic number, because the mean of its divisors is an integer number (16578981).

Almost surely, 2^87912718 is an apocalyptic number.

87912718 is a deficient number, since it is larger than the sum of its proper divisors (44719130).

87912718 is a wasteful number, since it uses less digits than its factorization.

87912718 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254258.

The product of its digits is 56448, while the sum is 43.

The square root of 87912718 is about 9376.1782192960. The cubic root of 87912718 is about 444.6489138395.

The spelling of 87912718 in words is "eighty-seven million, nine hundred twelve thousand, seven hundred eighteen".