957671261 has 2 divisors, whose sum is σ = 957671262. Its totient is φ = 957671260.

The previous prime is 957671249. The next prime is 957671279. The reversal of 957671261 is 162176759.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 944025625 + 13645636 = 30725^2 + 3694^2 .

It is an emirp because it is prime and its reverse (162176759) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-957671261 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (957671291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 478835630 + 478835631.

It is an arithmetic number, because the mean of its divisors is an integer number (478835631).

Almost surely, 2^957671261 is an apocalyptic number.

It is an amenable number.

957671261 is a deficient number, since it is larger than the sum of its proper divisors (1).

957671261 is an equidigital number, since it uses as much as digits as its factorization.

957671261 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 158760, while the sum is 44.

The square root of 957671261 is about 30946.2640879315. The cubic root of 957671261 is about 985.6865221804.

The spelling of 957671261 in words is "nine hundred fifty-seven million, six hundred seventy-one thousand, two hundred sixty-one".