87659745 has 16 divisors (see below), whose sum is σ = 142556352. Its totient is φ = 45984960.

The previous prime is 87659731. The next prime is 87659777. The reversal of 87659745 is 54795678.

It is not a de Polignac number, because 87659745 - 2⁴ = 87659729 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 46987 + ... + 48816.

It is an arithmetic number, because the mean of its divisors is an integer number (8909772).

Almost surely, 2^87659745 is an apocalyptic number.

It is an amenable number.

87659745 is a deficient number, since it is larger than the sum of its proper divisors (54896607).

87659745 is a wasteful number, since it uses less digits than its factorization.

87659745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95872.

The product of its digits is 2116800, while the sum is 51.

The square root of 87659745 is about 9362.6783027080. The cubic root of 87659745 is about 444.2220046736. Note that the first 3 decimals are identical.

The spelling of 87659745 in words is "eighty-seven million, six hundred fifty-nine thousand, seven hundred forty-five".