457638863 has 8 divisors (see below), whose sum is σ = 505562880. Its totient is φ = 410768280.

The previous prime is 457638851. The next prime is 457638887. The reversal of 457638863 is 368836754.

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 457638863 - 2¹⁴ = 457622479 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457638563) 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, 262445 + ... + 264182.

It is an arithmetic number, because the mean of its divisors is an integer number (63195360).

Almost surely, 2^457638863 is an apocalyptic number.

457638863 is a deficient number, since it is larger than the sum of its proper divisors (47924017).

457638863 is a wasteful number, since it uses less digits than its factorization.

457638863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 526717.

The product of its digits is 2903040, while the sum is 50.

The square root of 457638863 is about 21392.4954832296. The cubic root of 457638863 is about 770.6212240887.

The spelling of 457638863 in words is "four hundred fifty-seven million, six hundred thirty-eight thousand, eight hundred sixty-three".