11893009 has 2 divisors, whose sum is σ = 11893010. Its totient is φ = 11893008.

The previous prime is 11892989. The next prime is 11893039. The reversal of 11893009 is 90039811.

11893009 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8294400 + 3598609 = 2880^2 + 1897^2 .

It is a cyclic number.

It is not a de Polignac number, because 11893009 - 2⁵ = 11892977 is a prime.

It is not a weakly prime, because it can be changed into another prime (11893039) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5946504 + 5946505.

It is an arithmetic number, because the mean of its divisors is an integer number (5946505).

Almost surely, 2^11893009 is an apocalyptic number.

It is an amenable number.

11893009 is a deficient number, since it is larger than the sum of its proper divisors (1).

11893009 is an equidigital number, since it uses as much as digits as its factorization.

11893009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 31.

The square root of 11893009 is about 3448.6242184384. The cubic root of 11893009 is about 228.2604044832.

The spelling of 11893009 in words is "eleven million, eight hundred ninety-three thousand, nine".