11498813 has 2 divisors, whose sum is σ = 11498814. Its totient is φ = 11498812.

The previous prime is 11498803. The next prime is 11498831. The reversal of 11498813 is 31889411.

Together with next prime (11498831) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9721924 + 1776889 = 3118^2 + 1333^2 .

It is a cyclic number.

It is not a de Polignac number, because 11498813 - 2⁴ = 11498797 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11498803) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5749406 + 5749407.

It is an arithmetic number, because the mean of its divisors is an integer number (5749407).

Almost surely, 2^11498813 is an apocalyptic number.

It is an amenable number.

11498813 is a deficient number, since it is larger than the sum of its proper divisors (1).

11498813 is an equidigital number, since it uses as much as digits as its factorization.

11498813 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6912, while the sum is 35.

The square root of 11498813 is about 3390.9899734443. The cubic root of 11498813 is about 225.7101055032.

The spelling of 11498813 in words is "eleven million, four hundred ninety-eight thousand, eight hundred thirteen".