500399457 has 4 divisors (see below), whose sum is σ = 667199280. Its totient is φ = 333599636.

The previous prime is 500399453. The next prime is 500399491. The reversal of 500399457 is 754993005.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 500399457 - 2² = 500399453 is a prime.

It is not an unprimeable number, because it can be changed into a prime (500399453) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 83399907 + ... + 83399912.

It is an arithmetic number, because the mean of its divisors is an integer number (166799820).

Almost surely, 2^500399457 is an apocalyptic number.

It is an amenable number.

500399457 is a deficient number, since it is larger than the sum of its proper divisors (166799823).

500399457 is a wasteful number, since it uses less digits than its factorization.

500399457 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166799822.

The product of its (nonzero) digits is 170100, while the sum is 42.

The square root of 500399457 is about 22369.6101217701. The cubic root of 500399457 is about 793.9118358753.

The spelling of 500399457 in words is "five hundred million, three hundred ninety-nine thousand, four hundred fifty-seven".