838451231 has 2 divisors, whose sum is σ = 838451232. Its totient is φ = 838451230.

The previous prime is 838451179. The next prime is 838451239. The reversal of 838451231 is 132154838.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 838451231 - 2⁶ = 838451167 is a prime.

It is a super-2 number, since 2×838451231² = 1406000933530830722, which contains 22 as substring.

It is a Chen prime.

It is a zygodrome in base 2.

It is a junction number, because it is equal to n+sod(n) for n = 838451191 and 838451200.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (838451239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 419225615 + 419225616.

It is an arithmetic number, because the mean of its divisors is an integer number (419225616).

Almost surely, 2^838451231 is an apocalyptic number.

838451231 is a deficient number, since it is larger than the sum of its proper divisors (1).

838451231 is an equidigital number, since it uses as much as digits as its factorization.

838451231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 23040, while the sum is 35.

The square root of 838451231 is about 28956.0223615054. The cubic root of 838451231 is about 942.9585489701.

The spelling of 838451231 in words is "eight hundred thirty-eight million, four hundred fifty-one thousand, two hundred thirty-one".