479339209 has 4 divisors (see below), whose sum is σ = 479468416. Its totient is φ = 479210004.

The previous prime is 479339197. The next prime is 479339219. The reversal of 479339209 is 902933974.

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 479339209 - 2⁹ = 479338697 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (479339219) 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, 58869 + ... + 66514.

It is an arithmetic number, because the mean of its divisors is an integer number (119867104).

Almost surely, 2^479339209 is an apocalyptic number.

It is an amenable number.

479339209 is a deficient number, since it is larger than the sum of its proper divisors (129207).

479339209 is a wasteful number, since it uses less digits than its factorization.

479339209 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129206.

The product of its (nonzero) digits is 367416, while the sum is 46.

The square root of 479339209 is about 21893.8166841691. The cubic root of 479339209 is about 782.6140702754.

The spelling of 479339209 in words is "four hundred seventy-nine million, three hundred thirty-nine thousand, two hundred nine".