457505639 has 2 divisors, whose sum is σ = 457505640. Its totient is φ = 457505638.

The previous prime is 457505621. The next prime is 457505663. The reversal of 457505639 is 936505754.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 457505639 - 2²⁰ = 456457063 is a prime.

It is a super-2 number, since 2×457505639² = 418622819433596642, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 457505639.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (457505539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 228752819 + 228752820.

It is an arithmetic number, because the mean of its divisors is an integer number (228752820).

Almost surely, 2^457505639 is an apocalyptic number.

457505639 is a deficient number, since it is larger than the sum of its proper divisors (1).

457505639 is an equidigital number, since it uses as much as digits as its factorization.

457505639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 567000, while the sum is 44.

The square root of 457505639 is about 21389.3814543572. The cubic root of 457505639 is about 770.5464378950.

The spelling of 457505639 in words is "four hundred fifty-seven million, five hundred five thousand, six hundred thirty-nine".