87813608 has 8 divisors (see below), whose sum is σ = 164650530. Its totient is φ = 43906800.

The previous prime is 87813599. The next prime is 87813629. The reversal of 87813608 is 80631878.

It can be written as a sum of positive squares in only one way, i.e., 79530724 + 8282884 = 8918^2 + 2878^2 .

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

It is a super-2 number, since 2×87813608² = 15422459499955328, which contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5488343 + ... + 5488358.

Almost surely, 2^87813608 is an apocalyptic number.

It is an amenable number.

87813608 is a deficient number, since it is larger than the sum of its proper divisors (76836922).

87813608 is a wasteful number, since it uses less digits than its factorization.

87813608 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10976707 (or 10976703 counting only the distinct ones).

The product of its (nonzero) digits is 64512, while the sum is 41.

The square root of 87813608 is about 9370.8915264237. The cubic root of 87813608 is about 444.4817566638.

The spelling of 87813608 in words is "eighty-seven million, eight hundred thirteen thousand, six hundred eight".