831255982 has 4 divisors (see below), whose sum is σ = 1246883976. Its totient is φ = 415627990.

The previous prime is 831255977. The next prime is 831255989. The reversal of 831255982 is 289552138.

It is a semiprime because it is the product of two primes.

It is a super-2 number, since 2×831255982² = 1381973015221568648, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831255989) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 207813994 + ... + 207813997.

It is an arithmetic number, because the mean of its divisors is an integer number (311720994).

Almost surely, 2^831255982 is an apocalyptic number.

831255982 is a deficient number, since it is larger than the sum of its proper divisors (415627994).

831255982 is a wasteful number, since it uses less digits than its factorization.

831255982 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415627993.

The product of its digits is 172800, while the sum is 43.

The square root of 831255982 is about 28831.5102275271. The cubic root of 831255982 is about 940.2534332502.

The spelling of 831255982 in words is "eight hundred thirty-one million, two hundred fifty-five thousand, nine hundred eighty-two".