663479597 has 16 divisors (see below), whose sum is σ = 775688832. Its totient is φ = 561337920.

The previous prime is 663479549. The next prime is 663479611. The reversal of 663479597 is 795974366.

It is not a de Polignac number, because 663479597 - 2⁶ = 663479533 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 (663479897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26078 + ... + 44799.

It is an arithmetic number, because the mean of its divisors is an integer number (48480552).

Almost surely, 2^663479597 is an apocalyptic number.

It is an amenable number.

663479597 is a deficient number, since it is larger than the sum of its proper divisors (112209235).

663479597 is a wasteful number, since it uses less digits than its factorization.

663479597 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70948.

The product of its digits is 8573040, while the sum is 56.

The square root of 663479597 is about 25758.0976976173. The cubic root of 663479597 is about 872.1861595961.

The spelling of 663479597 in words is "six hundred sixty-three million, four hundred seventy-nine thousand, five hundred ninety-seven".