938172093 has 16 divisors (see below), whose sum is σ = 1314057600. Its totient is φ = 594233024.

The previous prime is 938172083. The next prime is 938172097. The reversal of 938172093 is 390271839.

It is a cyclic number.

It is not a de Polignac number, because 938172093 - 2⁴ = 938172077 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (938172097) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35346 + ... + 55907.

It is an arithmetic number, because the mean of its divisors is an integer number (82128600).

Almost surely, 2^938172093 is an apocalyptic number.

It is an amenable number.

938172093 is a deficient number, since it is larger than the sum of its proper divisors (375885507).

938172093 is a wasteful number, since it uses less digits than its factorization.

938172093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91428.

The product of its (nonzero) digits is 81648, while the sum is 42.

The square root of 938172093 is about 30629.5950511919. The cubic root of 938172093 is about 978.9507348816.

The spelling of 938172093 in words is "nine hundred thirty-eight million, one hundred seventy-two thousand, ninety-three".