87136704 has 42 divisors (see below), whose sum is σ = 249763280. Its totient is φ = 29045376.

The previous prime is 87136697. The next prime is 87136711. The reversal of 87136704 is 40763178.

It is an interprime number because it is at equal distance from previous prime (87136697) and next prime (87136711).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 75064 + ... + 76215.

Almost surely, 2^87136704 is an apocalyptic number.

It is an amenable number.

87136704 is an abundant number, since it is smaller than the sum of its proper divisors (162626576).

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

87136704 is a wasteful number, since it uses less digits than its factorization.

87136704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 151297 (or 151284 counting only the distinct ones).

The product of its (nonzero) digits is 28224, while the sum is 36.

The square root of 87136704 is about 9334.7042802651. The cubic root of 87136704 is about 443.3367257484.

The spelling of 87136704 in words is "eighty-seven million, one hundred thirty-six thousand, seven hundred four".