957984191 has 2 divisors, whose sum is σ = 957984192. Its totient is φ = 957984190.

The previous prime is 957984133. The next prime is 957984197. The reversal of 957984191 is 191489759.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 957984191 - 2²² = 953789887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (957984197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 478992095 + 478992096.

It is an arithmetic number, because the mean of its divisors is an integer number (478992096).

Almost surely, 2^957984191 is an apocalyptic number.

957984191 is a deficient number, since it is larger than the sum of its proper divisors (1).

957984191 is an equidigital number, since it uses as much as digits as its factorization.

957984191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 816480, while the sum is 53.

The square root of 957984191 is about 30951.3196972278. The cubic root of 957984191 is about 985.7938719240.

The spelling of 957984191 in words is "nine hundred fifty-seven million, nine hundred eighty-four thousand, one hundred ninety-one".