394973323 has 2 divisors, whose sum is σ = 394973324. Its totient is φ = 394973322.

The previous prime is 394973321. The next prime is 394973333. The reversal of 394973323 is 323379493.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 394973323 - 2¹ = 394973321 is a prime.

It is a super-4 number, since 4×394973323⁴ (a number of 35 digits) contains 4444 as substring.

Together with 394973321, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 394973323.

It is not a weakly prime, because it can be changed into another prime (394973321) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 197486661 + 197486662.

It is an arithmetic number, because the mean of its divisors is an integer number (197486662).

Almost surely, 2^394973323 is an apocalyptic number.

394973323 is a deficient number, since it is larger than the sum of its proper divisors (1).

394973323 is an equidigital number, since it uses as much as digits as its factorization.

394973323 is an evil number, because the sum of its binary digits is even.

The product of its digits is 367416, while the sum is 43.

The square root of 394973323 is about 19873.9357702494. The cubic root of 394973323 is about 733.7068739980.

The spelling of 394973323 in words is "three hundred ninety-four million, nine hundred seventy-three thousand, three hundred twenty-three".