1957076257 has 2 divisors, whose sum is σ = 1957076258. Its totient is φ = 1957076256.

The previous prime is 1957076249. The next prime is 1957076299. The reversal of 1957076257 is 7526707591.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1295352081 + 661724176 = 35991^2 + 25724^2 .

It is a cyclic number.

It is not a de Polignac number, because 1957076257 - 2³ = 1957076249 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1957076257.

It is not a weakly prime, because it can be changed into another prime (1957076857) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 978538128 + 978538129.

It is an arithmetic number, because the mean of its divisors is an integer number (978538129).

Almost surely, 2^1957076257 is an apocalyptic number.

It is an amenable number.

1957076257 is a deficient number, since it is larger than the sum of its proper divisors (1).

1957076257 is an equidigital number, since it uses as much as digits as its factorization.

1957076257 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 926100, while the sum is 49.

The square root of 1957076257 is about 44238.8546076862. The cubic root of 1957076257 is about 1250.8423670334.

The spelling of 1957076257 in words is "one billion, nine hundred fifty-seven million, seventy-six thousand, two hundred fifty-seven".