311913604 has 6 divisors (see below), whose sum is σ = 545848814. Its totient is φ = 155956800.

The previous prime is 311913593. The next prime is 311913617. The reversal of 311913604 is 406319113.

It can be written as a sum of positive squares in only one way, i.e., 167961600 + 143952004 = 12960^2 + 11998^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38989197 + ... + 38989204.

Almost surely, 2^311913604 is an apocalyptic number.

It is an amenable number.

311913604 is a deficient number, since it is larger than the sum of its proper divisors (233935210).

311913604 is a wasteful number, since it uses less digits than its factorization.

311913604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77978405 (or 77978403 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 28.

The square root of 311913604 is about 17661.0759581629. The cubic root of 311913604 is about 678.1796787414.

The spelling of 311913604 in words is "three hundred eleven million, nine hundred thirteen thousand, six hundred four".