87776648 has 16 divisors (see below), whose sum is σ = 171737280. Its totient is φ = 41980048.

The previous prime is 87776609. The next prime is 87776653. The reversal of 87776648 is 84667778.

It is a self number, because there is not a number n which added to its sum of digits gives 87776648.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 238340 + ... + 238707.

It is an arithmetic number, because the mean of its divisors is an integer number (10733580).

Almost surely, 2^87776648 is an apocalyptic number.

It is an amenable number.

87776648 is a deficient number, since it is larger than the sum of its proper divisors (83960632).

87776648 is a wasteful number, since it uses less digits than its factorization.

87776648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477076 (or 477072 counting only the distinct ones).

The product of its digits is 3161088, while the sum is 53.

The square root of 87776648 is about 9368.9192546419. The cubic root of 87776648 is about 444.4193883838.

The spelling of 87776648 in words is "eighty-seven million, seven hundred seventy-six thousand, six hundred forty-eight".