987090724 has 27 divisors (see below), whose sum is σ = 1808426683. Its totient is φ = 471395672.

The previous prime is 987090691. The next prime is 987090733. The reversal of 987090724 is 427090789.

The square root of 987090724 is 31418.

It is a perfect power (a square), and thus also a powerful number.

It is a Harshad number since it is a multiple of its sum of digits (46).

It is a Duffinian number.

It is an unprimeable number.

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 8 ways as a sum of consecutive naturals, for example, 1444887 + ... + 1445569.

Almost surely, 2^987090724 is an apocalyptic number.

987090724 is the 31418-th square number.

It is an amenable number.

987090724 is a deficient number, since it is larger than the sum of its proper divisors (821335959).

987090724 is an equidigital number, since it uses as much as digits as its factorization.

987090724 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1416 (or 708 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 46.

The cubic root of 987090724 is about 995.6782574477.

Multiplying 987090724 by its product of nonzero digits (254016), we get a square (250736837347584 = 15834672²).

The spelling of 987090724 in words is "nine hundred eighty-seven million, ninety thousand, seven hundred twenty-four".