479421109 has 4 divisors (see below), whose sum is σ = 479604204. Its totient is φ = 479238016.

The previous prime is 479421101. The next prime is 479421119. The reversal of 479421109 is 901124974.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 272349009 + 207072100 = 16503^2 + 14390^2 .

It is a cyclic number.

It is not a de Polignac number, because 479421109 - 2³ = 479421101 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 (479421101) 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, 87562 + ... + 92875.

It is an arithmetic number, because the mean of its divisors is an integer number (119901051).

Almost surely, 2^479421109 is an apocalyptic number.

It is an amenable number.

479421109 is a deficient number, since it is larger than the sum of its proper divisors (183095).

479421109 is a wasteful number, since it uses less digits than its factorization.

479421109 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 183094.

The product of its (nonzero) digits is 18144, while the sum is 37.

The square root of 479421109 is about 21895.6869953879. The cubic root of 479421109 is about 782.6586402731.

The spelling of 479421109 in words is "four hundred seventy-nine million, four hundred twenty-one thousand, one hundred nine".