945566957 has 2 divisors, whose sum is σ = 945566958. Its totient is φ = 945566956.

The previous prime is 945566873. The next prime is 945566971. The reversal of 945566957 is 759665549.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 571879396 + 373687561 = 23914^2 + 19331^2 .

It is a cyclic number.

It is not a de Polignac number, because 945566957 - 2²⁸ = 677131501 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (945266957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 472783478 + 472783479.

It is an arithmetic number, because the mean of its divisors is an integer number (472783479).

Almost surely, 2^945566957 is an apocalyptic number.

It is an amenable number.

945566957 is a deficient number, since it is larger than the sum of its proper divisors (1).

945566957 is an equidigital number, since it uses as much as digits as its factorization.

945566957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10206000, while the sum is 56.

The square root of 945566957 is about 30750.0724714593. The cubic root of 945566957 is about 981.5161029172.

The spelling of 945566957 in words is "nine hundred forty-five million, five hundred sixty-six thousand, nine hundred fifty-seven".