61590087 has 24 divisors (see below), whose sum is σ = 98903168. Its totient is φ = 36676800.

The previous prime is 61590079. The next prime is 61590091. The reversal of 61590087 is 78009516.

61590087 is a `hidden beast` number, since 61 + 590 + 0 + 8 + 7 = 666.

It is not a de Polignac number, because 61590087 - 2³ = 61590079 is a prime.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61590007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4864 + ... + 12117.

Almost surely, 2^61590087 is an apocalyptic number.

61590087 is a deficient number, since it is larger than the sum of its proper divisors (37313081).

61590087 is a wasteful number, since it uses less digits than its factorization.

61590087 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17031 (or 17028 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The square root of 61590087 is about 7847.9352061545. The cubic root of 61590087 is about 394.9149782291.

The spelling of 61590087 in words is "sixty-one million, five hundred ninety thousand, eighty-seven".