87890008 has 8 divisors (see below), whose sum is σ = 164793780. Its totient is φ = 43945000.

The previous prime is 87889961. The next prime is 87890041. The reversal of 87890008 is 80009878.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5493118 + ... + 5493133.

Almost surely, 2^87890008 is an apocalyptic number.

It is an amenable number.

87890008 is a deficient number, since it is larger than the sum of its proper divisors (76903772).

87890008 is a wasteful number, since it uses less digits than its factorization.

87890008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10986257 (or 10986253 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 40.

The square root of 87890008 is about 9374.9670932756. The cubic root of 87890008 is about 444.6106226544.

The spelling of 87890008 in words is "eighty-seven million, eight hundred ninety thousand, eight".