393340017 has 32 divisors (see below), whose sum is σ = 612659200. Its totient is φ = 219827520.

The previous prime is 393339979. The next prime is 393340061. The reversal of 393340017 is 710043393.

It is not a de Polignac number, because 393340017 - 2⁷ = 393339889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (393340097) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 254148 + ... + 255690.

It is an arithmetic number, because the mean of its divisors is an integer number (19145600).

Almost surely, 2^393340017 is an apocalyptic number.

It is an amenable number.

393340017 is a deficient number, since it is larger than the sum of its proper divisors (219319183).

393340017 is a wasteful number, since it uses less digits than its factorization.

393340017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1813.

The product of its (nonzero) digits is 6804, while the sum is 30.

The square root of 393340017 is about 19832.8015418901. The cubic root of 393340017 is about 732.6941275519.

The spelling of 393340017 in words is "three hundred ninety-three million, three hundred forty thousand, seventeen".