87689590 has 16 divisors (see below), whose sum is σ = 158995872. Its totient is φ = 34819264.

The previous prime is 87689573. The next prime is 87689597. The reversal of 87689590 is 9598678.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87689597) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 30634 + ... + 33373.

It is an arithmetic number, because the mean of its divisors is an integer number (9937242).

Almost surely, 2^87689590 is an apocalyptic number.

87689590 is a deficient number, since it is larger than the sum of its proper divisors (71306282).

87689590 is a wasteful number, since it uses less digits than its factorization.

87689590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64151.

The product of its (nonzero) digits is 1088640, while the sum is 52.

The square root of 87689590 is about 9364.2719951954. The cubic root of 87689590 is about 444.2724128414.

The spelling of 87689590 in words is "eighty-seven million, six hundred eighty-nine thousand, five hundred ninety".