479328649 has 4 divisors (see below), whose sum is σ = 483808464. Its totient is φ = 474848836.

The previous prime is 479328631. The next prime is 479328659. The reversal of 479328649 is 946823974.

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, and also an emirpimes, since its reverse is a distinct semiprime: 946823974 = 2 ⋅473411987.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-479328649 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 479328596 and 479328605.

It is not an unprimeable number, because it can be changed into a prime (479328659) 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, 2239747 + ... + 2239960.

It is an arithmetic number, because the mean of its divisors is an integer number (120952116).

Almost surely, 2^479328649 is an apocalyptic number.

It is an amenable number.

479328649 is a deficient number, since it is larger than the sum of its proper divisors (4479815).

479328649 is a wasteful number, since it uses less digits than its factorization.

479328649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4479814.

The product of its digits is 2612736, while the sum is 52.

The square root of 479328649 is about 21893.5755188594. The cubic root of 479328649 is about 782.6083231517.

The spelling of 479328649 in words is "four hundred seventy-nine million, three hundred twenty-eight thousand, six hundred forty-nine".