87772685 has 96 divisors (see below), whose sum is σ = 151787520. Its totient is φ = 47174400.

The previous prime is 87772679. The next prime is 87772691. The reversal of 87772685 is 58627778.

It is an interprime number because it is at equal distance from previous prime (87772679) and next prime (87772691).

It is not a de Polignac number, because 87772685 - 2⁸ = 87772429 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1236200 + ... + 1236270.

It is an arithmetic number, because the mean of its divisors is an integer number (1581120).

Almost surely, 2^87772685 is an apocalyptic number.

It is an amenable number.

87772685 is a deficient number, since it is larger than the sum of its proper divisors (64014835).

87772685 is a wasteful number, since it uses less digits than its factorization.

87772685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139 (or 126 counting only the distinct ones).

The product of its digits is 1317120, while the sum is 50.

The square root of 87772685 is about 9368.7077550749. The cubic root of 87772685 is about 444.4126999665.

The spelling of 87772685 in words is "eighty-seven million, seven hundred seventy-two thousand, six hundred eighty-five".