87659490 has 32 divisors (see below), whose sum is σ = 210632256. Its totient is φ = 23348160.

The previous prime is 87659477. The next prime is 87659503. The reversal of 87659490 is 9495678.

It is an interprime number because it is at equal distance from previous prime (87659477) and next prime (87659503).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 42585 + ... + 44595.

It is an arithmetic number, because the mean of its divisors is an integer number (6582258).

Almost surely, 2^87659490 is an apocalyptic number.

87659490 is an abundant number, since it is smaller than the sum of its proper divisors (122972766).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

87659490 is a wasteful number, since it uses less digits than its factorization.

87659490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3474.

The product of its (nonzero) digits is 544320, while the sum is 48.

The square root of 87659490 is about 9362.6646847999. The cubic root of 87659490 is about 444.2215739296.

The spelling of 87659490 in words is "eighty-seven million, six hundred fifty-nine thousand, four hundred ninety".