394313 has 4 divisors (see below), whose sum is σ = 407940. Its totient is φ = 380688.

The previous prime is 394291. The next prime is 394319. The reversal of 394313 is 313493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 313493 = 67 ⋅4679.

It can be written as a sum of positive squares in 2 ways, for example, as 110224 + 284089 = 332^2 + 533^2 .

It is a cyclic number.

It is not a de Polignac number, because 394313 - 2⁶ = 394249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394319) 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, 6770 + ... + 6827.

It is an arithmetic number, because the mean of its divisors is an integer number (101985).

2³⁹⁴³¹³ is an apocalyptic number.

It is an amenable number.

394313 is a deficient number, since it is larger than the sum of its proper divisors (13627).

394313 is a wasteful number, since it uses less digits than its factorization.

394313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13626.

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

The square root of 394313 is about 627.9434687932. The cubic root of 394313 is about 73.3297771462.

It can be divided in two parts, 394 and 313, that added together give a palindrome (707).

The spelling of 394313 in words is "three hundred ninety-four thousand, three hundred thirteen".