87390088 has 8 divisors (see below), whose sum is σ = 163856430. Its totient is φ = 43695040.

The previous prime is 87390073. The next prime is 87390103. The reversal of 87390088 is 88009378.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (87390073) and next prime (87390103).

It can be written as a sum of positive squares in only one way, i.e., 87198244 + 191844 = 9338^2 + 438^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5461873 + ... + 5461888.

Almost surely, 2^87390088 is an apocalyptic number.

It is an amenable number.

87390088 is a deficient number, since it is larger than the sum of its proper divisors (76466342).

87390088 is a wasteful number, since it uses less digits than its factorization.

87390088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10923767 (or 10923763 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 87390088 is about 9348.2665772859. The cubic root of 87390088 is about 443.7660347839.

The spelling of 87390088 in words is "eighty-seven million, three hundred ninety thousand, eighty-eight".