938288231 has 2 divisors, whose sum is σ = 938288232. Its totient is φ = 938288230.

The previous prime is 938288209. The next prime is 938288237. The reversal of 938288231 is 132882839.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-938288231 is a prime.

It is a super-2 number, since 2×938288231² = 1760769608866218722, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (938288237) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 469144115 + 469144116.

It is an arithmetic number, because the mean of its divisors is an integer number (469144116).

Almost surely, 2^938288231 is an apocalyptic number.

938288231 is a deficient number, since it is larger than the sum of its proper divisors (1).

938288231 is an equidigital number, since it uses as much as digits as its factorization.

938288231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 165888, while the sum is 44.

The square root of 938288231 is about 30631.4908386778. The cubic root of 938288231 is about 978.9911285685.

The spelling of 938288231 in words is "nine hundred thirty-eight million, two hundred eighty-eight thousand, two hundred thirty-one".