457961691 has 32 divisors (see below), whose sum is σ = 724405248. Its totient is φ = 254154240.

The previous prime is 457961687. The next prime is 457961719. The reversal of 457961691 is 196169754.

It is a happy number.

It is not a de Polignac number, because 457961691 - 2² = 457961687 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 457961691.

It is not an unprimeable number, because it can be changed into a prime (457961641) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 9726 + ... + 31788.

It is an arithmetic number, because the mean of its divisors is an integer number (22637664).

Almost surely, 2^457961691 is an apocalyptic number.

457961691 is a deficient number, since it is larger than the sum of its proper divisors (266443557).

457961691 is a wasteful number, since it uses less digits than its factorization.

457961691 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22131.

The product of its digits is 408240, while the sum is 48.

The square root of 457961691 is about 21400.0395093093. The cubic root of 457961691 is about 770.8023855923.

The spelling of 457961691 in words is "four hundred fifty-seven million, nine hundred sixty-one thousand, six hundred ninety-one".