987957090 has 24 divisors (see below), whose sum is σ = 2568688668. Its totient is φ = 263455200.

The previous prime is 987957077. The next prime is 987957097. The reversal of 987957090 is 90759789.

987957090 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 888695721 + 99261369 = 29811^2 + 9963^2 .

It is not an unprimeable number, because it can be changed into a prime (987957097) 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, 5488561 + ... + 5488740.

Almost surely, 2^987957090 is an apocalyptic number.

987957090 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

987957090 is an abundant number, since it is smaller than the sum of its proper divisors (1580731578).

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

987957090 is a wasteful number, since it uses less digits than its factorization.

987957090 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10977314 (or 10977311 counting only the distinct ones).

The product of its (nonzero) digits is 1428840, while the sum is 54.

The square root of 987957090 is about 31431.7847091125. The cubic root of 987957090 is about 995.9694733471.

The spelling of 987957090 in words is "nine hundred eighty-seven million, nine hundred fifty-seven thousand, ninety".