457407839 has 4 divisors (see below), whose sum is σ = 522751824. Its totient is φ = 392063856.

The previous prime is 457407833. The next prime is 457407857. The reversal of 457407839 is 938704754.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 457407839 - 2²⁰ = 456359263 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 457407793 and 457407802.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (457407833) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32671982 + ... + 32671995.

It is an arithmetic number, because the mean of its divisors is an integer number (130687956).

Almost surely, 2^457407839 is an apocalyptic number.

457407839 is a deficient number, since it is larger than the sum of its proper divisors (65343985).

457407839 is an equidigital number, since it uses as much as digits as its factorization.

457407839 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65343984.

The product of its (nonzero) digits is 846720, while the sum is 47.

The square root of 457407839 is about 21387.0951510484. The cubic root of 457407839 is about 770.4915279619.

The spelling of 457407839 in words is "four hundred fifty-seven million, four hundred seven thousand, eight hundred thirty-nine".