957243391 has 8 divisors (see below), whose sum is σ = 1058739584. Its totient is φ = 859727520.

The previous prime is 957243367. The next prime is 957243401. The reversal of 957243391 is 193342759.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 957243391 - 2¹⁵ = 957210623 is a prime.

It is a super-2 number, since 2×957243391² = 1832629819226357762, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (957243311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 994575 + ... + 995536.

It is an arithmetic number, because the mean of its divisors is an integer number (132342448).

Almost surely, 2^957243391 is an apocalyptic number.

957243391 is a deficient number, since it is larger than the sum of its proper divisors (101496193).

957243391 is a wasteful number, since it uses less digits than its factorization.

957243391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1990161.

The product of its digits is 204120, while the sum is 43.

The square root of 957243391 is about 30939.3502032606. The cubic root of 957243391 is about 985.5397047444.

The spelling of 957243391 in words is "nine hundred fifty-seven million, two hundred forty-three thousand, three hundred ninety-one".