87922218 has 16 divisors (see below), whose sum is σ = 177026400. Its totient is φ = 29110416.

The previous prime is 87922199. The next prime is 87922243. The reversal of 87922218 is 81222978.

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, 48280 + ... + 50067.

It is an arithmetic number, because the mean of its divisors is an integer number (11064150).

Almost surely, 2^87922218 is an apocalyptic number.

87922218 is an abundant number, since it is smaller than the sum of its proper divisors (89104182).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87922218 is a wasteful number, since it uses less digits than its factorization.

87922218 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98501.

The product of its digits is 32256, while the sum is 39.

The square root of 87922218 is about 9376.6848086091. The cubic root of 87922218 is about 444.6649297722.

The spelling of 87922218 in words is "eighty-seven million, nine hundred twenty-two thousand, two hundred eighteen".