394279 has 4 divisors (see below), whose sum is σ = 395640. Its totient is φ = 392920.

The previous prime is 394271. The next prime is 394291. The reversal of 394279 is 972493.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 394279 - 2³ = 394271 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52 + ... + 889.

It is an arithmetic number, because the mean of its divisors is an integer number (98910).

2³⁹⁴²⁷⁹ is an apocalyptic number.

394279 is a deficient number, since it is larger than the sum of its proper divisors (1361).

394279 is an equidigital number, since it uses as much as digits as its factorization.

394279 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1360.

The product of its digits is 13608, while the sum is 34.

The square root of 394279 is about 627.9163957089. The cubic root of 394279 is about 73.3276694432.

The spelling of 394279 in words is "three hundred ninety-four thousand, two hundred seventy-nine".