479719821 has 32 divisors (see below), whose sum is σ = 778429440. Its totient is φ = 256525056.

The previous prime is 479719819. The next prime is 479719843. The reversal of 479719821 is 128917974.

It is not a de Polignac number, because 479719821 - 2¹ = 479719819 is a prime.

It is a super-2 number, since 2×479719821² = 460262213320544082, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479719811) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 60150 + ... + 67656.

It is an arithmetic number, because the mean of its divisors is an integer number (24325920).

Almost surely, 2^479719821 is an apocalyptic number.

It is an amenable number.

479719821 is a deficient number, since it is larger than the sum of its proper divisors (298709619).

479719821 is a wasteful number, since it uses less digits than its factorization.

479719821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7713.

The product of its digits is 254016, while the sum is 48.

The square root of 479719821 is about 21902.5071852516. The cubic root of 479719821 is about 782.8211564025.

The spelling of 479719821 in words is "four hundred seventy-nine million, seven hundred nineteen thousand, eight hundred twenty-one".