9831013 has 2 divisors, whose sum is σ = 9831014. Its totient is φ = 9831012.

The previous prime is 9830987. The next prime is 9831043. The reversal of 9831013 is 3101389.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 6796449 + 3034564 = 2607^2 + 1742^2 .

It is a cyclic number.

It is not a de Polignac number, because 9831013 - 2¹⁷ = 9699941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (9831043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4915506 + 4915507.

It is an arithmetic number, because the mean of its divisors is an integer number (4915507).

Almost surely, 2^9831013 is an apocalyptic number.

It is an amenable number.

9831013 is a deficient number, since it is larger than the sum of its proper divisors (1).

9831013 is an equidigital number, since it uses as much as digits as its factorization.

9831013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 9831013 is about 3135.4446255675. Note that the first 3 decimals coincide. The cubic root of 9831013 is about 214.2229966507. Note that the first 3 decimals are identical.

The spelling of 9831013 in words is "nine million, eight hundred thirty-one thousand, thirteen".