457386813 has 12 divisors (see below), whose sum is σ = 711490780. Its totient is φ = 281468736.

The previous prime is 457386799. The next prime is 457386833. The reversal of 457386813 is 318683754.

457386813 is a `hidden beast` number, since 4 + 573 + 8 + 68 + 13 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 204004089 + 253382724 = 14283^2 + 15918^2 .

It is not a de Polignac number, because 457386813 - 2⁶ = 457386749 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457386833) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1954528 + ... + 1954761.

Almost surely, 2^457386813 is an apocalyptic number.

It is an amenable number.

457386813 is a deficient number, since it is larger than the sum of its proper divisors (254103967).

457386813 is a wasteful number, since it uses less digits than its factorization.

457386813 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3909308 (or 3909305 counting only the distinct ones).

The product of its digits is 483840, while the sum is 45.

The square root of 457386813 is about 21386.6035872927. The cubic root of 457386813 is about 770.4797218655.

The spelling of 457386813 in words is "four hundred fifty-seven million, three hundred eighty-six thousand, eight hundred thirteen".