313493 has 4 divisors (see below), whose sum is σ = 318240. Its totient is φ = 308748.

The previous prime is 313477. The next prime is 313507. The reversal of 313493 is 394313.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 394313 = 29 ⋅13597.

It is a cyclic number.

It is not a de Polignac number, because 313493 - 2⁴ = 313477 is a prime.

It is a super-2 number, since 2×313493² = 196555722098, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313993) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2273 + ... + 2406.

It is an arithmetic number, because the mean of its divisors is an integer number (79560).

2³¹³⁴⁹³ is an apocalyptic number.

It is an amenable number.

313493 is a deficient number, since it is larger than the sum of its proper divisors (4747).

313493 is an equidigital number, since it uses as much as digits as its factorization.

313493 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4746.

The product of its digits is 972, while the sum is 23.

The square root of 313493 is about 559.9044561352. The cubic root of 313493 is about 67.9322421945.

The spelling of 313493 in words is "three hundred thirteen thousand, four hundred ninety-three".