87796590 has 32 divisors (see below), whose sum is σ = 240814080. Its totient is φ = 20067744.

The previous prime is 87796559. The next prime is 87796591. The reversal of 87796590 is 9569778.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (87796591) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 208830 + ... + 209249.

It is an arithmetic number, because the mean of its divisors is an integer number (7525440).

Almost surely, 2^87796590 is an apocalyptic number.

87796590 is an abundant number, since it is smaller than the sum of its proper divisors (153017490).

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

87796590 is a wasteful number, since it uses less digits than its factorization.

87796590 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 418096.

The product of its (nonzero) digits is 952560, while the sum is 51.

The square root of 87796590 is about 9369.9834578296. The cubic root of 87796590 is about 444.4530417550.

The spelling of 87796590 in words is "eighty-seven million, seven hundred ninety-six thousand, five hundred ninety".