394336197 has 12 divisors (see below), whose sum is σ = 570439584. Its totient is φ = 262501800.

The previous prime is 394336183. The next prime is 394336223. The reversal of 394336197 is 791633493.

It is a happy number.

It is not a de Polignac number, because 394336197 - 2⁴ = 394336181 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (394336897) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 25929 + ... + 38222.

It is an arithmetic number, because the mean of its divisors is an integer number (47536632).

Almost surely, 2^394336197 is an apocalyptic number.

It is an amenable number.

394336197 is a deficient number, since it is larger than the sum of its proper divisors (176103387).

394336197 is a wasteful number, since it uses less digits than its factorization.

394336197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64840 (or 64837 counting only the distinct ones).

The product of its digits is 367416, while the sum is 45.

The square root of 394336197 is about 19857.9001155711. The cubic root of 394336197 is about 733.3121508803.

The spelling of 394336197 in words is "three hundred ninety-four million, three hundred thirty-six thousand, one hundred ninety-seven".