479822909 has 8 divisors (see below), whose sum is σ = 511758648. Its totient is φ = 448299520.

The previous prime is 479822843. The next prime is 479822921. The reversal of 479822909 is 909228974.

It can be written as a sum of positive squares in 4 ways, for example, as 38402809 + 441420100 = 6197^2 + 21010^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 479822909 - 2⁸ = 479822653 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (479822969) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 100682 + ... + 105339.

It is an arithmetic number, because the mean of its divisors is an integer number (63969831).

Almost surely, 2^479822909 is an apocalyptic number.

It is an amenable number.

479822909 is a deficient number, since it is larger than the sum of its proper divisors (31935739).

479822909 is a wasteful number, since it uses less digits than its factorization.

479822909 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206175.

The product of its (nonzero) digits is 653184, while the sum is 50.

The square root of 479822909 is about 21904.8603967247. The cubic root of 479822909 is about 782.8772264139.

The spelling of 479822909 in words is "four hundred seventy-nine million, eight hundred twenty-two thousand, nine hundred nine".