831719013 has 16 divisors (see below), whose sum is σ = 1124356800. Its totient is φ = 546804864.

The previous prime is 831719011. The next prime is 831719017. The reversal of 831719013 is 310917138.

It is not a de Polignac number, because 831719013 - 2¹ = 831719011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (831719011) by changing a digit.

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, 149913 + ... + 155361.

It is an arithmetic number, because the mean of its divisors is an integer number (70272300).

Almost surely, 2^831719013 is an apocalyptic number.

831719013 is a gapful number since it is divisible by the number (83) formed by its first and last digit.

It is an amenable number.

831719013 is a deficient number, since it is larger than the sum of its proper divisors (292637787).

831719013 is a wasteful number, since it uses less digits than its factorization.

831719013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6148.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 831719013 is about 28839.5390566493. The cubic root of 831719013 is about 940.4279826409.

The spelling of 831719013 in words is "eight hundred thirty-one million, seven hundred nineteen thousand, thirteen".