317428 has 6 divisors (see below), whose sum is σ = 555506. Its totient is φ = 158712.

The previous prime is 317419. The next prime is 317431. The reversal of 317428 is 824713.

It can be written as a sum of positive squares in only one way, i.e., 272484 + 44944 = 522^2 + 212^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 39675 + ... + 39682.

2³¹⁷⁴²⁸ is an apocalyptic number.

It is an amenable number.

317428 is a deficient number, since it is larger than the sum of its proper divisors (238078).

317428 is a wasteful number, since it uses less digits than its factorization.

317428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79361 (or 79359 counting only the distinct ones).

The product of its digits is 1344, while the sum is 25.

The square root of 317428 is about 563.4074901881. The cubic root of 317428 is about 68.2152922769.

The spelling of 317428 in words is "three hundred seventeen thousand, four hundred twenty-eight".