7945957 has 2 divisors, whose sum is σ = 7945958. Its totient is φ = 7945956.

The previous prime is 7945937. The next prime is 7945963. The reversal of 7945957 is 7595497.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7834401 + 111556 = 2799^2 + 334^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7945957 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7945937) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3972978 + 3972979.

It is an arithmetic number, because the mean of its divisors is an integer number (3972979).

Almost surely, 2^7945957 is an apocalyptic number.

It is an amenable number.

7945957 is a deficient number, since it is larger than the sum of its proper divisors (1).

7945957 is an equidigital number, since it uses as much as digits as its factorization.

7945957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 396900, while the sum is 46.

The square root of 7945957 is about 2818.8573926327. The cubic root of 7945957 is about 199.5486237303.

The spelling of 7945957 in words is "seven million, nine hundred forty-five thousand, nine hundred fifty-seven".