393010939 has 4 divisors (see below), whose sum is σ = 393058624. Its totient is φ = 392963256.

The previous prime is 393010909. The next prime is 393010957. The reversal of 393010939 is 939010393.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 393010939 - 2⁵ = 393010907 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 393010898 and 393010907.

It is not an unprimeable number, because it can be changed into a prime (393010909) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7947 + ... + 29140.

It is an arithmetic number, because the mean of its divisors is an integer number (98264656).

Almost surely, 2^393010939 is an apocalyptic number.

393010939 is the 10597-th nonagonal number.

393010939 is a deficient number, since it is larger than the sum of its proper divisors (47685).

393010939 is a wasteful number, since it uses less digits than its factorization.

393010939 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47684.

The product of its (nonzero) digits is 19683, while the sum is 37.

The square root of 393010939 is about 19824.5034994574. The cubic root of 393010939 is about 732.4897405250.

The spelling of 393010939 in words is "three hundred ninety-three million, ten thousand, nine hundred thirty-nine".