664874317 has 8 divisors (see below), whose sum is σ = 703555200. Its totient is φ = 627007920.

The previous prime is 664874303. The next prime is 664874321. The reversal of 664874317 is 713478466.

664874317 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 664874317 - 2¹¹ = 664872269 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 (664874117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 201942 + ... + 205207.

It is an arithmetic number, because the mean of its divisors is an integer number (87944400).

Almost surely, 2^664874317 is an apocalyptic number.

It is an amenable number.

664874317 is a deficient number, since it is larger than the sum of its proper divisors (38680883).

664874317 is a wasteful number, since it uses less digits than its factorization.

664874317 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 407243.

The product of its digits is 677376, while the sum is 46.

The square root of 664874317 is about 25785.1569124564. The cubic root of 664874317 is about 872.7968812610.

The spelling of 664874317 in words is "six hundred sixty-four million, eight hundred seventy-four thousand, three hundred seventeen".