313722427 has 2 divisors, whose sum is σ = 313722428. Its totient is φ = 313722426.

The previous prime is 313722397. The next prime is 313722439. The reversal of 313722427 is 724227313.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313722427 is a prime.

It is a super-2 number, since 2×313722427² = 196843522405540658, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (313722457) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156861213 + 156861214.

It is an arithmetic number, because the mean of its divisors is an integer number (156861214).

Almost surely, 2^313722427 is an apocalyptic number.

313722427 is a deficient number, since it is larger than the sum of its proper divisors (1).

313722427 is an equidigital number, since it uses as much as digits as its factorization.

313722427 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14112, while the sum is 31.

The square root of 313722427 is about 17712.2112397069. The cubic root of 313722427 is about 679.4881001800.

The spelling of 313722427 in words is "three hundred thirteen million, seven hundred twenty-two thousand, four hundred twenty-seven".