9980957 has 10 divisors (see below), whose sum is σ = 11646558. Its totient is φ = 8553048.

The previous prime is 9980941. The next prime is 9980969. The reversal of 9980957 is 7590899.

It can be written as a sum of positive squares in only one way, i.e., 8357881 + 1623076 = 2891^2 + 1274^2 .

It is not a de Polignac number, because 9980957 - 2⁴ = 9980941 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (9980987) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 323 + ... + 4479.

Almost surely, 2^9980957 is an apocalyptic number.

It is an amenable number.

9980957 is a deficient number, since it is larger than the sum of its proper divisors (1665601).

9980957 is an frugal number, since it uses more digits than its factorization.

9980957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4185 (or 4164 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 47.

The square root of 9980957 is about 3159.2652626837. The cubic root of 9980957 is about 215.3066257702.

The spelling of 9980957 in words is "nine million, nine hundred eighty thousand, nine hundred fifty-seven".