394564 has 6 divisors (see below), whose sum is σ = 690494. Its totient is φ = 197280.

The previous prime is 394549. The next prime is 394571. The reversal of 394564 is 465493.

It can be written as a sum of positive squares in only one way, i.e., 350464 + 44100 = 592^2 + 210^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49317 + ... + 49324.

2³⁹⁴⁵⁶⁴ is an apocalyptic number.

It is an amenable number.

394564 is a deficient number, since it is larger than the sum of its proper divisors (295930).

394564 is a wasteful number, since it uses less digits than its factorization.

394564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98645 (or 98643 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

The square root of 394564 is about 628.1432957534. The cubic root of 394564 is about 73.3453332062.

The spelling of 394564 in words is "three hundred ninety-four thousand, five hundred sixty-four".