87090651 has 12 divisors (see below), whose sum is σ = 126139728. Its totient is φ = 57902544.

The previous prime is 87090629. The next prime is 87090691. The reversal of 87090651 is 15609078.

It is not a de Polignac number, because 87090651 - 2⁶ = 87090587 is a prime.

It is not an unprimeable number, because it can be changed into a prime (87090691) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9615 + ... + 16328.

It is an arithmetic number, because the mean of its divisors is an integer number (10511644).

Almost surely, 2^87090651 is an apocalyptic number.

87090651 is a deficient number, since it is larger than the sum of its proper divisors (39049077).

87090651 is a wasteful number, since it uses less digits than its factorization.

87090651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26322 (or 26319 counting only the distinct ones).

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

The square root of 87090651 is about 9332.2371915849. The cubic root of 87090651 is about 443.2586087084.

The spelling of 87090651 in words is "eighty-seven million, ninety thousand, six hundred fifty-one".