87668625 has 64 divisors (see below), whose sum is σ = 162549504. Its totient is φ = 41600000.

The previous prime is 87668621. The next prime is 87668639. The reversal of 87668625 is 52686678.

It is not a de Polignac number, because 87668625 - 2² = 87668621 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87668621) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 218425 + ... + 218825.

It is an arithmetic number, because the mean of its divisors is an integer number (2539836).

Almost surely, 2^87668625 is an apocalyptic number.

It is an amenable number.

87668625 is a deficient number, since it is larger than the sum of its proper divisors (74880879).

87668625 is a wasteful number, since it uses less digits than its factorization.

87668625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 483 (or 473 counting only the distinct ones).

The product of its digits is 967680, while the sum is 48.

The square root of 87668625 is about 9363.1525139773. The cubic root of 87668625 is about 444.2370041781.

It can be divided in two parts, 8766 and 8625, that added together give a triangular number (17391 = T₁₈₆).

The spelling of 87668625 in words is "eighty-seven million, six hundred sixty-eight thousand, six hundred twenty-five".