479257 has 4 divisors (see below), whose sum is σ = 487440. Its totient is φ = 471076.

The previous prime is 479243. The next prime is 479263. The reversal of 479257 is 752974.

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 479257 - 2¹¹ = 477209 is a prime.

It is a Duffinian number.

479257 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (479267) 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, 4003 + ... + 4120.

It is an arithmetic number, because the mean of its divisors is an integer number (121860).

2⁴⁷⁹²⁵⁷ is an apocalyptic number.

It is an amenable number.

479257 is a deficient number, since it is larger than the sum of its proper divisors (8183).

479257 is an equidigital number, since it uses as much as digits as its factorization.

479257 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8182.

The product of its digits is 17640, while the sum is 34.

The square root of 479257 is about 692.2839013006. The cubic root of 479257 is about 78.2569327014.

The spelling of 479257 in words is "four hundred seventy-nine thousand, two hundred fifty-seven".