831668445 has 16 divisors (see below), whose sum is σ = 1478521920. Its totient is φ = 443556432.

The previous prime is 831668419. The next prime is 831668479. The reversal of 831668445 is 544866138.

It is not a de Polignac number, because 831668445 - 2⁵ = 831668413 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 831668445.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3080119 + ... + 3080388.

It is an arithmetic number, because the mean of its divisors is an integer number (92407620).

Almost surely, 2^831668445 is an apocalyptic number.

It is an amenable number.

831668445 is a deficient number, since it is larger than the sum of its proper divisors (646853475).

831668445 is a wasteful number, since it uses less digits than its factorization.

831668445 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6160521 (or 6160515 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 831668445 is about 28838.6623302815. The cubic root of 831668445 is about 940.4089231087.

The spelling of 831668445 in words is "eight hundred thirty-one million, six hundred sixty-eight thousand, four hundred forty-five".