831898313 has 2 divisors, whose sum is σ = 831898314. Its totient is φ = 831898312.

The previous prime is 831898303. The next prime is 831898363. The reversal of 831898313 is 313898138.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 689167504 + 142730809 = 26252^2 + 11947^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-831898313 is a prime.

It is not a weakly prime, because it can be changed into another prime (831898303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 415949156 + 415949157.

It is an arithmetic number, because the mean of its divisors is an integer number (415949157).

Almost surely, 2^831898313 is an apocalyptic number.

It is an amenable number.

831898313 is a deficient number, since it is larger than the sum of its proper divisors (1).

831898313 is an equidigital number, since it uses as much as digits as its factorization.

831898313 is an evil number, because the sum of its binary digits is even.

The product of its digits is 124416, while the sum is 44.

The square root of 831898313 is about 28842.6474686357. The cubic root of 831898313 is about 940.4955561922.

The spelling of 831898313 in words is "eight hundred thirty-one million, eight hundred ninety-eight thousand, three hundred thirteen".