9638957 has 2 divisors, whose sum is σ = 9638958. Its totient is φ = 9638956.

The previous prime is 9638953. The next prime is 9639011. The reversal of 9638957 is 7598369.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7123561 + 2515396 = 2669^2 + 1586^2 .

It is a cyclic number.

It is not a de Polignac number, because 9638957 - 2² = 9638953 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9638953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4819478 + 4819479.

It is an arithmetic number, because the mean of its divisors is an integer number (4819479).

Almost surely, 2^9638957 is an apocalyptic number.

It is an amenable number.

9638957 is a deficient number, since it is larger than the sum of its proper divisors (1).

9638957 is an equidigital number, since it uses as much as digits as its factorization.

9638957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 47.

The square root of 9638957 is about 3104.6669708682. Note that the first 3 decimals coincide. The cubic root of 9638957 is about 212.8188118769.

The spelling of 9638957 in words is "nine million, six hundred thirty-eight thousand, nine hundred fifty-seven".