394679923 has 8 divisors (see below), whose sum is σ = 438684336. Its totient is φ = 352029600.

The previous prime is 394679921. The next prime is 394679927. The reversal of 394679923 is 329976493.

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 394679923 - 2¹ = 394679921 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (394679921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 337908 + ... + 339073.

It is an arithmetic number, because the mean of its divisors is an integer number (54835542).

Almost surely, 2^394679923 is an apocalyptic number.

394679923 is a deficient number, since it is larger than the sum of its proper divisors (44004413).

394679923 is a wasteful number, since it uses less digits than its factorization.

394679923 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677045.

The product of its digits is 2204496, while the sum is 52.

The square root of 394679923 is about 19866.5528715980. The cubic root of 394679923 is about 733.5251546181.

The spelling of 394679923 in words is "three hundred ninety-four million, six hundred seventy-nine thousand, nine hundred twenty-three".