938539231 has 4 divisors (see below), whose sum is σ = 1072616272. Its totient is φ = 804462192.

The previous prime is 938539223. The next prime is 938539279. The reversal of 938539231 is 132935839.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132935839 = 67 ⋅1984117.

It is a cyclic number.

It is not a de Polignac number, because 938539231 - 2³ = 938539223 is a prime.

It is a super-2 number, since 2×938539231² = 1761711776252142722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (938539201) 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, 67038510 + ... + 67038523.

It is an arithmetic number, because the mean of its divisors is an integer number (268154068).

Almost surely, 2^938539231 is an apocalyptic number.

938539231 is a deficient number, since it is larger than the sum of its proper divisors (134077041).

938539231 is a wasteful number, since it uses less digits than its factorization.

938539231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134077040.

The product of its digits is 174960, while the sum is 43.

The square root of 938539231 is about 30635.5876555355. The cubic root of 938539231 is about 979.0784169080.

The spelling of 938539231 in words is "nine hundred thirty-eight million, five hundred thirty-nine thousand, two hundred thirty-one".