11491873 has 2 divisors, whose sum is σ = 11491874. Its totient is φ = 11491872.

The previous prime is 11491853. The next prime is 11491877. The reversal of 11491873 is 37819411.

11491873 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7463824 + 4028049 = 2732^2 + 2007^2 .

It is a cyclic number.

It is not a de Polignac number, because 11491873 - 2⁵ = 11491841 is a prime.

It is equal to p₇₅₆₇₈₁ and since 11491873 and 756781 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (11491877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5745936 + 5745937.

It is an arithmetic number, because the mean of its divisors is an integer number (5745937).

Almost surely, 2^11491873 is an apocalyptic number.

It is an amenable number.

11491873 is a deficient number, since it is larger than the sum of its proper divisors (1).

11491873 is an equidigital number, since it uses as much as digits as its factorization.

11491873 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6048, while the sum is 34.

The square root of 11491873 is about 3389.9665190087. The cubic root of 11491873 is about 225.6646879639.

The spelling of 11491873 in words is "eleven million, four hundred ninety-one thousand, eight hundred seventy-three".