968971957 has 2 divisors, whose sum is σ = 968971958. Its totient is φ = 968971956.

The previous prime is 968971943. The next prime is 968971987. The reversal of 968971957 is 759179869.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 824034436 + 144937521 = 28706^2 + 12039^2 .

It is a cyclic number.

It is not a de Polignac number, because 968971957 - 2¹¹ = 968969909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 968971895 and 968971904.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (968971987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 484485978 + 484485979.

It is an arithmetic number, because the mean of its divisors is an integer number (484485979).

Almost surely, 2^968971957 is an apocalyptic number.

It is an amenable number.

968971957 is a deficient number, since it is larger than the sum of its proper divisors (1).

968971957 is an equidigital number, since it uses as much as digits as its factorization.

968971957 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8573040, while the sum is 61.

The square root of 968971957 is about 31128.3143938119. The cubic root of 968971957 is about 989.5484649719.

The spelling of 968971957 in words is "nine hundred sixty-eight million, nine hundred seventy-one thousand, nine hundred fifty-seven".