311714638 has 4 divisors (see below), whose sum is σ = 467571960. Its totient is φ = 155857318.

The previous prime is 311714597. The next prime is 311714639. The reversal of 311714638 is 836417113.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311714639) by changing a digit.

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, 77928658 + ... + 77928661.

It is an arithmetic number, because the mean of its divisors is an integer number (116892990).

Almost surely, 2^311714638 is an apocalyptic number.

311714638 is a deficient number, since it is larger than the sum of its proper divisors (155857322).

311714638 is a wasteful number, since it uses less digits than its factorization.

311714638 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155857321.

The product of its digits is 12096, while the sum is 34.

The square root of 311714638 is about 17655.4421638202. The cubic root of 311714638 is about 678.0354471363.

The spelling of 311714638 in words is "three hundred eleven million, seven hundred fourteen thousand, six hundred thirty-eight".