939272993 has 4 divisors (see below), whose sum is σ = 945035568. Its totient is φ = 933510420.

The previous prime is 939272941. The next prime is 939273007. The reversal of 939272993 is 399272939.

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 a de Polignac number, because none of the positive numbers 2^k-939272993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (939274993) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2881043 + ... + 2881368.

It is an arithmetic number, because the mean of its divisors is an integer number (236258892).

Almost surely, 2^939272993 is an apocalyptic number.

It is an amenable number.

939272993 is a deficient number, since it is larger than the sum of its proper divisors (5762575).

939272993 is a wasteful number, since it uses less digits than its factorization.

939272993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5762574.

The product of its digits is 1653372, while the sum is 53.

The square root of 939272993 is about 30647.5609633132. The cubic root of 939272993 is about 979.3335024616. Note that the first 3 decimals are identical.

The spelling of 939272993 in words is "nine hundred thirty-nine million, two hundred seventy-two thousand, nine hundred ninety-three".