11489999 has 2 divisors, whose sum is σ = 11490000. Its totient is φ = 11489998.

The previous prime is 11489993. The next prime is 11490007. The reversal of 11489999 is 99998411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11489999 - 2⁴ = 11489983 is a prime.

It is a Chen prime.

11489999 is a modest number, since divided by 9999 gives 1148 as remainder.

It is a plaindrome in base 10.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11489993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5744999 + 5745000.

It is an arithmetic number, because the mean of its divisors is an integer number (5745000).

Almost surely, 2^11489999 is an apocalyptic number.

11489999 is a deficient number, since it is larger than the sum of its proper divisors (1).

11489999 is an equidigital number, since it uses as much as digits as its factorization.

11489999 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 209952, while the sum is 50.

The square root of 11489999 is about 3389.6901038296. The cubic root of 11489999 is about 225.6524207842.

The spelling of 11489999 in words is "eleven million, four hundred eighty-nine thousand, nine hundred ninety-nine".