393074393 has 4 divisors (see below), whose sum is σ = 410164608. Its totient is φ = 375984180.

The previous prime is 393074387. The next prime is 393074411. The reversal of 393074393 is 393470393.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 393074393 - 2⁶ = 393074329 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 393074393.

It is not an unprimeable number, because it can be changed into a prime (393074333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8545073 + ... + 8545118.

It is an arithmetic number, because the mean of its divisors is an integer number (102541152).

Almost surely, 2^393074393 is an apocalyptic number.

It is an amenable number.

393074393 is a deficient number, since it is larger than the sum of its proper divisors (17090215).

393074393 is a wasteful number, since it uses less digits than its factorization.

393074393 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17090214.

The product of its (nonzero) digits is 183708, while the sum is 41.

The square root of 393074393 is about 19826.1038280344. The cubic root of 393074393 is about 732.5291600408.

The spelling of 393074393 in words is "three hundred ninety-three million, seventy-four thousand, three hundred ninety-three".