313944897 has 16 divisors (see below), whose sum is σ = 478796672. Its totient is φ = 179245440.

The previous prime is 313944881. The next prime is 313944901. The reversal of 313944897 is 798449313.

It is a happy number.

It is not a de Polignac number, because 313944897 - 2⁴ = 313944881 is a prime.

It is a super-2 number, since 2×313944897² = 197122796704681218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (313944497) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22083 + ... + 33399.

It is an arithmetic number, because the mean of its divisors is an integer number (29924792).

Almost surely, 2^313944897 is an apocalyptic number.

It is an amenable number.

313944897 is a deficient number, since it is larger than the sum of its proper divisors (164851775).

313944897 is a wasteful number, since it uses less digits than its factorization.

313944897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12648.

The product of its digits is 653184, while the sum is 48.

The square root of 313944897 is about 17718.4902573554. The cubic root of 313944897 is about 679.6486773725.

The spelling of 313944897 in words is "three hundred thirteen million, nine hundred forty-four thousand, eight hundred ninety-seven".