311427 has 6 divisors (see below), whose sum is σ = 449852. Its totient is φ = 207612.

The previous prime is 311419. The next prime is 311447. The reversal of 311427 is 724113.

It is not a de Polignac number, because 311427 - 2³ = 311419 is a prime.

It is a Duffinian number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 311427.

It is not an unprimeable number, because it can be changed into a prime (311407) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 17293 + ... + 17310.

2³¹¹⁴²⁷ is an apocalyptic number.

311427 is a deficient number, since it is larger than the sum of its proper divisors (138425).

311427 is a wasteful number, since it uses less digits than its factorization.

311427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34609 (or 34606 counting only the distinct ones).

The product of its digits is 168, while the sum is 18.

The square root of 311427 is about 558.0564487577. The cubic root of 311427 is about 67.7826828146.

Subtracting 311427 from its reverse (724113), we obtain a triangular number (412686 = T₉₀₈).

The spelling of 311427 in words is "three hundred eleven thousand, four hundred twenty-seven", and thus it is an iban number.