311449797 has 12 divisors (see below), whose sum is σ = 452387520. Its totient is φ = 206472168.

The previous prime is 311449793. The next prime is 311449811. The reversal of 311449797 is 797944113.

It is not a de Polignac number, because 311449797 - 2² = 311449793 is a prime.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311449793) 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 in 11 ways as a sum of consecutive naturals, for example, 95053 + ... + 98274.

It is an arithmetic number, because the mean of its divisors is an integer number (37698960).

Almost surely, 2^311449797 is an apocalyptic number.

It is an amenable number.

311449797 is a deficient number, since it is larger than the sum of its proper divisors (140937723).

311449797 is a wasteful number, since it uses less digits than its factorization.

311449797 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 193512 (or 193509 counting only the distinct ones).

The product of its digits is 190512, while the sum is 45.

The square root of 311449797 is about 17647.9403047494. The cubic root of 311449797 is about 677.8433671116.

The spelling of 311449797 in words is "three hundred eleven million, four hundred forty-nine thousand, seven hundred ninety-seven".