11196989 has 2 divisors, whose sum is σ = 11196990. Its totient is φ = 11196988.

The previous prime is 11196953. The next prime is 11197009. The reversal of 11196989 is 98969111.

11196989 is digitally balanced in base 3, 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., 7425625 + 3771364 = 2725^2 + 1942^2 .

It is an emirp because it is prime and its reverse (98969111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11196989 is a prime.

It is a super-2 number, since 2×11196989² = 250745125332242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11196919) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5598494 + 5598495.

It is an arithmetic number, because the mean of its divisors is an integer number (5598495).

Almost surely, 2^11196989 is an apocalyptic number.

It is an amenable number.

11196989 is a deficient number, since it is larger than the sum of its proper divisors (1).

11196989 is an equidigital number, since it uses as much as digits as its factorization.

11196989 is an evil number, because the sum of its binary digits is even.

The product of its digits is 34992, while the sum is 44.

The square root of 11196989 is about 3346.1902217298. The cubic root of 11196989 is about 223.7177367835.

The spelling of 11196989 in words is "eleven million, one hundred ninety-six thousand, nine hundred eighty-nine".