11199973 has 2 divisors, whose sum is σ = 11199974. Its totient is φ = 11199972.

The previous prime is 11199967. The next prime is 11199977. The reversal of 11199973 is 37999111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11068929 + 131044 = 3327^2 + 362^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11199973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11199977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5599986 + 5599987.

It is an arithmetic number, because the mean of its divisors is an integer number (5599987).

Almost surely, 2^11199973 is an apocalyptic number.

It is an amenable number.

11199973 is a deficient number, since it is larger than the sum of its proper divisors (1).

11199973 is an equidigital number, since it uses as much as digits as its factorization.

11199973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15309, while the sum is 40.

The square root of 11199973 is about 3346.6360722373. The cubic root of 11199973 is about 223.7376086268.

The spelling of 11199973 in words is "eleven million, one hundred ninety-nine thousand, nine hundred seventy-three".