87870195 has 96 divisors (see below), whose sum is σ = 188023680. Its totient is φ = 37048320.

The previous prime is 87870187. The next prime is 87870247. The reversal of 87870195 is 59107878.

It is not a de Polignac number, because 87870195 - 2³ = 87870187 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 87870195.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 326521 + ... + 326789.

It is an arithmetic number, because the mean of its divisors is an integer number (1958580).

Almost surely, 2^87870195 is an apocalyptic number.

87870195 is a gapful number since it is divisible by the number (85) formed by its first and last digit.

87870195 is an abundant number, since it is smaller than the sum of its proper divisors (100153485).

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

87870195 is a wasteful number, since it uses less digits than its factorization.

87870195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 365 (or 362 counting only the distinct ones).

The product of its (nonzero) digits is 141120, while the sum is 45.

The square root of 87870195 is about 9373.9103366738. The cubic root of 87870195 is about 444.5772106944.

The spelling of 87870195 in words is "eighty-seven million, eight hundred seventy thousand, one hundred ninety-five".