989696970 has 24 divisors (see below), whose sum is σ = 2573212356. Its totient is φ = 263919168.

The previous prime is 989696957. The next prime is 989696971. The reversal of 989696970 is 79696989.

It can be written as a sum of positive squares in 2 ways, for example, as 850480569 + 139216401 = 29163^2 + 11799^2 .

It is a junction number, because it is equal to n+sod(n) for n = 989696898 and 989696907.

It is not an unprimeable number, because it can be changed into a prime (989696971) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5498227 + ... + 5498406.

Almost surely, 2^989696970 is an apocalyptic number.

989696970 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

989696970 is an abundant number, since it is smaller than the sum of its proper divisors (1583515386).

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

989696970 is a wasteful number, since it uses less digits than its factorization.

989696970 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10996646 (or 10996643 counting only the distinct ones).

The product of its (nonzero) digits is 13226976, while the sum is 63.

The square root of 989696970 is about 31459.4496137488. The cubic root of 989696970 is about 996.5537939735.

The spelling of 989696970 in words is "nine hundred eighty-nine million, six hundred ninety-six thousand, nine hundred seventy".