394160863 has 4 divisors (see below), whose sum is σ = 395174520. Its totient is φ = 393147208.

The previous prime is 394160849. The next prime is 394160881. The reversal of 394160863 is 368061493.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 368061493 = 997 ⋅369169.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-394160863 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394160803) 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, 506245 + ... + 507022.

It is an arithmetic number, because the mean of its divisors is an integer number (98793630).

Almost surely, 2^394160863 is an apocalyptic number.

394160863 is a deficient number, since it is larger than the sum of its proper divisors (1013657).

394160863 is a wasteful number, since it uses less digits than its factorization.

394160863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1013656.

The product of its (nonzero) digits is 93312, while the sum is 40.

The square root of 394160863 is about 19853.4849081968. The cubic root of 394160863 is about 733.2034503904.

The spelling of 394160863 in words is "three hundred ninety-four million, one hundred sixty thousand, eight hundred sixty-three".