87420208 has 20 divisors (see below), whose sum is σ = 169534288. Its totient is φ = 43669440.

The previous prime is 87420191. The next prime is 87420211. The reversal of 87420208 is 80202478.

It is a self number, because there is not a number n which added to its sum of digits gives 87420208.

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, 22918 + ... + 26458.

Almost surely, 2^87420208 is an apocalyptic number.

It is an amenable number.

87420208 is a deficient number, since it is larger than the sum of its proper divisors (82114080).

87420208 is a wasteful number, since it uses less digits than its factorization.

87420208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5092 (or 5086 counting only the distinct ones).

The product of its (nonzero) digits is 7168, while the sum is 31.

The square root of 87420208 is about 9349.8774323517. The cubic root of 87420208 is about 443.8170119522.

The spelling of 87420208 in words is "eighty-seven million, four hundred twenty thousand, two hundred eight".