394574227 has 4 divisors (see below), whose sum is σ = 397586376. Its totient is φ = 391562080.

The previous prime is 394574221. The next prime is 394574239. The reversal of 394574227 is 722475493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 722475493 = 47 ⋅15371819.

It is a cyclic number.

It is not a de Polignac number, because 394574227 - 2²³ = 386185619 is a prime.

It is a super-2 number, since 2×394574227² = 311377641225295058, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394574221) 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, 1505878 + ... + 1506139.

It is an arithmetic number, because the mean of its divisors is an integer number (99396594).

Almost surely, 2^394574227 is an apocalyptic number.

394574227 is a deficient number, since it is larger than the sum of its proper divisors (3012149).

394574227 is a wasteful number, since it uses less digits than its factorization.

394574227 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3012148.

The product of its digits is 423360, while the sum is 43.

The square root of 394574227 is about 19863.8925440106. The cubic root of 394574227 is about 733.4596689826.

The spelling of 394574227 in words is "three hundred ninety-four million, five hundred seventy-four thousand, two hundred twenty-seven".