393436013 has 16 divisors (see below), whose sum is σ = 416482560. Its totient is φ = 371257536.

The previous prime is 393435979. The next prime is 393436027. The reversal of 393436013 is 310634393.

It is a cyclic number.

It is not a de Polignac number, because 393436013 - 2¹⁴ = 393419629 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (393436033) 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 15 ways as a sum of consecutive naturals, for example, 145631 + ... + 148307.

It is an arithmetic number, because the mean of its divisors is an integer number (26030160).

Almost surely, 2^393436013 is an apocalyptic number.

It is an amenable number.

393436013 is a deficient number, since it is larger than the sum of its proper divisors (23046547).

393436013 is a wasteful number, since it uses less digits than its factorization.

393436013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2836.

The product of its (nonzero) digits is 17496, while the sum is 32.

The square root of 393436013 is about 19835.2215263657. The cubic root of 393436013 is about 732.7537282208.

The spelling of 393436013 in words is "three hundred ninety-three million, four hundred thirty-six thousand, thirteen".