311779604 has 6 divisors (see below), whose sum is σ = 545614314. Its totient is φ = 155889800.

The previous prime is 311779603. The next prime is 311779619. The reversal of 311779604 is 406977113.

It can be written as a sum of positive squares in only one way, i.e., 247747600 + 64032004 = 15740^2 + 8002^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311779603) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38972447 + ... + 38972454.

It is an arithmetic number, because the mean of its divisors is an integer number (90935719).

Almost surely, 2^311779604 is an apocalyptic number.

It is an amenable number.

311779604 is a deficient number, since it is larger than the sum of its proper divisors (233834710).

311779604 is a wasteful number, since it uses less digits than its factorization.

311779604 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77944905 (or 77944903 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 38.

The square root of 311779604 is about 17657.2818972797. The cubic root of 311779604 is about 678.0825481123.

The spelling of 311779604 in words is "three hundred eleven million, seven hundred seventy-nine thousand, six hundred four".