980551988 has 12 divisors (see below), whose sum is σ = 1847963460. Its totient is φ = 452562432.

The previous prime is 980551969. The next prime is 980551997. The reversal of 980551988 is 889155089.

It can be written as a sum of positive squares in 2 ways, for example, as 106048804 + 874503184 = 10298^2 + 29572^2 .

It is a super-5 number, since 5×980551988⁵ (a number of 46 digits) contains 55555 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9428333 + ... + 9428436.

It is an arithmetic number, because the mean of its divisors is an integer number (153996955).

Almost surely, 2^980551988 is an apocalyptic number.

It is an amenable number.

980551988 is a deficient number, since it is larger than the sum of its proper divisors (867411472).

980551988 is a wasteful number, since it uses less digits than its factorization.

980551988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18856786 (or 18856784 counting only the distinct ones).

The product of its (nonzero) digits is 1036800, while the sum is 53.

The square root of 980551988 is about 31313.7667488279. The cubic root of 980551988 is about 993.4748442848.

The spelling of 980551988 in words is "nine hundred eighty million, five hundred fifty-one thousand, nine hundred eighty-eight".