980691856 has 15 divisors (see below), whose sum is σ = 1900333201. Its totient is φ = 490283296.

The previous prime is 980691839. The next prime is 980691883. The reversal of 980691856 is 658196089.

The square root of 980691856 is 31316.

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

It can be written as a sum of positive squares in only one way, i.e., 128051856 + 852640000 = 11316^2 + 29200^2 .

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 121350 + ... + 129178.

Almost surely, 2^980691856 is an apocalyptic number.

980691856 is the 31316-th square number.

It is an amenable number.

980691856 is a deficient number, since it is larger than the sum of its proper divisors (919641345).

980691856 is an frugal number, since it uses more digits than its factorization.

980691856 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15666 (or 7831 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 52.

The cubic root of 980691856 is about 993.5220791535.

The spelling of 980691856 in words is "nine hundred eighty million, six hundred ninety-one thousand, eight hundred fifty-six".