989146756 has 12 divisors (see below), whose sum is σ = 1864161292. Its totient is φ = 456529248.

The previous prime is 989146747. The next prime is 989146777. The reversal of 989146756 is 657641989.

It can be written as a sum of positive squares in 2 ways, for example, as 289544256 + 699602500 = 17016^2 + 26450^2 .

It is a super-2 number, since 2×989146756² = 1956822609810647072, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 989146697 and 989146706.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9510975 + ... + 9511078.

Almost surely, 2^989146756 is an apocalyptic number.

It is an amenable number.

989146756 is a deficient number, since it is larger than the sum of its proper divisors (875014536).

989146756 is a wasteful number, since it uses less digits than its factorization.

989146756 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19022070 (or 19022068 counting only the distinct ones).

The product of its digits is 3265920, while the sum is 55.

The square root of 989146756 is about 31450.7035851346. The cubic root of 989146756 is about 996.3690844081.

The spelling of 989146756 in words is "nine hundred eighty-nine million, one hundred forty-six thousand, seven hundred fifty-six".