394222853 has 4 divisors (see below), whose sum is σ = 394280460. Its totient is φ = 394165248.

The previous prime is 394222847. The next prime is 394222889. The reversal of 394222853 is 358222493.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 225690529 + 168532324 = 15023^2 + 12982^2 .

It is a cyclic number.

It is not a de Polignac number, because 394222853 - 2⁶ = 394222789 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 (394222823) 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, 16898 + ... + 32771.

It is an arithmetic number, because the mean of its divisors is an integer number (98570115).

Almost surely, 2^394222853 is an apocalyptic number.

It is an amenable number.

394222853 is a deficient number, since it is larger than the sum of its proper divisors (57607).

394222853 is an equidigital number, since it uses as much as digits as its factorization.

394222853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57606.

The product of its digits is 103680, while the sum is 38.

The square root of 394222853 is about 19855.0460336913. The cubic root of 394222853 is about 733.2418855435.

The spelling of 394222853 in words is "three hundred ninety-four million, two hundred twenty-two thousand, eight hundred fifty-three".