320693039 has 4 divisors (see below), whose sum is σ = 337571640. Its totient is φ = 303814440.

The previous prime is 320693033. The next prime is 320693059. The reversal of 320693039 is 930396023.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 320693039 - 2²⁰ = 319644463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320693033) 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, 8439272 + ... + 8439309.

It is an arithmetic number, because the mean of its divisors is an integer number (84392910).

Almost surely, 2^320693039 is an apocalyptic number.

320693039 is a deficient number, since it is larger than the sum of its proper divisors (16878601).

320693039 is a wasteful number, since it uses less digits than its factorization.

320693039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16878600.

The product of its (nonzero) digits is 26244, while the sum is 35.

The square root of 320693039 is about 17907.9043720922. The cubic root of 320693039 is about 684.4838059708.

The spelling of 320693039 in words is "three hundred twenty million, six hundred ninety-three thousand, thirty-nine".