87617888 has 12 divisors (see below), whose sum is σ = 172497780. Its totient is φ = 43808928.

The previous prime is 87617857. The next prime is 87617897. The reversal of 87617888 is 88871678.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1368998 + ... + 1369061.

It is an arithmetic number, because the mean of its divisors is an integer number (14374815).

Almost surely, 2^87617888 is an apocalyptic number.

It is an amenable number.

87617888 is a deficient number, since it is larger than the sum of its proper divisors (84879892).

87617888 is a wasteful number, since it uses less digits than its factorization.

87617888 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2738069 (or 2738061 counting only the distinct ones).

The product of its digits is 1204224, while the sum is 53.

The square root of 87617888 is about 9360.4427245724. The cubic root of 87617888 is about 444.1512889735.

The spelling of 87617888 in words is "eighty-seven million, six hundred seventeen thousand, eight hundred eighty-eight".