87668176 has 20 divisors (see below), whose sum is σ = 170496900. Its totient is φ = 43668992.

The previous prime is 87668171. The next prime is 87668177. The reversal of 87668176 is 67186678.

It can be written as a sum of positive squares in 2 ways, for example, as 30514576 + 57153600 = 5524^2 + 7560^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87668171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5881 + ... + 14488.

It is an arithmetic number, because the mean of its divisors is an integer number (8524845).

Almost surely, 2^87668176 is an apocalyptic number.

It is an amenable number.

87668176 is a deficient number, since it is larger than the sum of its proper divisors (82828724).

87668176 is a wasteful number, since it uses less digits than its factorization.

87668176 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20646 (or 20640 counting only the distinct ones).

The product of its digits is 677376, while the sum is 49.

The square root of 87668176 is about 9363.1285369795. The cubic root of 87668176 is about 444.2362457815.

The spelling of 87668176 in words is "eighty-seven million, six hundred sixty-eight thousand, one hundred seventy-six".