394307863 has 8 divisors (see below), whose sum is σ = 410298048. Its totient is φ = 378634464.

The previous prime is 394307857. The next prime is 394307869. The reversal of 394307863 is 368703493.

It is an interprime number because it is at equal distance from previous prime (394307857) and next prime (394307869).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 394307863 - 2⁵ = 394307831 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 (394307869) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 76656 + ... + 81637.

It is an arithmetic number, because the mean of its divisors is an integer number (51287256).

Almost surely, 2^394307863 is an apocalyptic number.

394307863 is a deficient number, since it is larger than the sum of its proper divisors (15990185).

394307863 is a wasteful number, since it uses less digits than its factorization.

394307863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158393.

The product of its (nonzero) digits is 326592, while the sum is 43.

The square root of 394307863 is about 19857.1866839187. The cubic root of 394307863 is about 733.2945870483.

The spelling of 394307863 in words is "three hundred ninety-four million, three hundred seven thousand, eight hundred sixty-three".