87800166 has 32 divisors (see below), whose sum is σ = 197793120. Its totient is φ = 28864512.

The previous prime is 87800137. The next prime is 87800179. The reversal of 87800166 is 66100878.

It is a self number, because there is not a number n which added to its sum of digits gives 87800166.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7195 + ... + 15078.

It is an arithmetic number, because the mean of its divisors is an integer number (6181035).

Almost surely, 2^87800166 is an apocalyptic number.

87800166 is an abundant number, since it is smaller than the sum of its proper divisors (109992954).

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

87800166 is a wasteful number, since it uses less digits than its factorization.

87800166 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22357 (or 22351 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The square root of 87800166 is about 9370.1742779950. The cubic root of 87800166 is about 444.4590759396.

The spelling of 87800166 in words is "eighty-seven million, eight hundred thousand, one hundred sixty-six".