980817656 has 32 divisors (see below), whose sum is σ = 2263427040. Its totient is φ = 388015488.

The previous prime is 980817619. The next prime is 980817683. The reversal of 980817656 is 656718089.

It is a happy number.

It is a congruent 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 7 ways as a sum of consecutive naturals, for example, 672911 + ... + 674366.

It is an arithmetic number, because the mean of its divisors is an integer number (70732095).

Almost surely, 2^980817656 is an apocalyptic number.

It is an amenable number.

980817656 is an abundant number, since it is smaller than the sum of its proper divisors (1282609384).

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

980817656 is a wasteful number, since it uses less digits than its factorization.

980817656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1347303 (or 1347299 counting only the distinct ones).

The product of its (nonzero) digits is 725760, while the sum is 50.

The square root of 980817656 is about 31318.0084935170. The cubic root of 980817656 is about 993.5645592771.

The spelling of 980817656 in words is "nine hundred eighty million, eight hundred seventeen thousand, six hundred fifty-six".