7939700957 has 2 divisors, whose sum is σ = 7939700958. Its totient is φ = 7939700956.

The previous prime is 7939700921. The next prime is 7939701031. The reversal of 7939700957 is 7590079397.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7938631801 + 1069156 = 89099^2 + 1034^2 .

It is a cyclic number.

It is not a de Polignac number, because 7939700957 - 2¹⁸ = 7939438813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7939730957) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3969850478 + 3969850479.

It is an arithmetic number, because the mean of its divisors is an integer number (3969850479).

Almost surely, 2^7939700957 is an apocalyptic number.

It is an amenable number.

7939700957 is a deficient number, since it is larger than the sum of its proper divisors (1).

7939700957 is an equidigital number, since it uses as much as digits as its factorization.

7939700957 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3750705, while the sum is 56.

The square root of 7939700957 is about 89104.9996184277. Note that the first 3 decimals coincide. The cubic root of 7939700957 is about 1994.9624017051.

The spelling of 7939700957 in words is "seven billion, nine hundred thirty-nine million, seven hundred thousand, nine hundred fifty-seven".