479818609 has 4 divisors (see below), whose sum is σ = 505072240. Its totient is φ = 454564980.

The previous prime is 479818583. The next prime is 479818637. The reversal of 479818609 is 906818974.

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.

It is a cyclic number.

It is not a de Polignac number, because 479818609 - 2²⁵ = 446264177 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (479818309) 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, 12626787 + ... + 12626824.

It is an arithmetic number, because the mean of its divisors is an integer number (126268060).

Almost surely, 2^479818609 is an apocalyptic number.

It is an amenable number.

479818609 is a deficient number, since it is larger than the sum of its proper divisors (25253631).

479818609 is a wasteful number, since it uses less digits than its factorization.

479818609 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25253630.

The product of its (nonzero) digits is 870912, while the sum is 52.

The square root of 479818609 is about 21904.7622447723. The cubic root of 479818609 is about 782.8748877857.

The spelling of 479818609 in words is "four hundred seventy-nine million, eight hundred eighteen thousand, six hundred nine".