479822857 has 4 divisors (see below), whose sum is σ = 483274960. Its totient is φ = 476370756.

The previous prime is 479822843. The next prime is 479822921. The reversal of 479822857 is 758228974.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 758228974 = 2 ⋅379114487.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-479822857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (479882857) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1725843 + ... + 1726120.

It is an arithmetic number, because the mean of its divisors is an integer number (120818740).

Almost surely, 2^479822857 is an apocalyptic number.

It is an amenable number.

479822857 is a deficient number, since it is larger than the sum of its proper divisors (3452103).

479822857 is a wasteful number, since it uses less digits than its factorization.

479822857 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3452102.

The product of its digits is 2257920, while the sum is 52.

The square root of 479822857 is about 21904.8592097735. The cubic root of 479822857 is about 782.8771981329.

The spelling of 479822857 in words is "four hundred seventy-nine million, eight hundred twenty-two thousand, eight hundred fifty-seven".