11773997 has 2 divisors, whose sum is σ = 11773998. Its totient is φ = 11773996.

The previous prime is 11773991. The next prime is 11774023. The reversal of 11773997 is 79937711.

It is a happy number.

11773997 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., 11703241 + 70756 = 3421^2 + 266^2 .

It is a cyclic number.

It is not a de Polignac number, because 11773997 - 2⁶ = 11773933 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11773991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5886998 + 5886999.

It is an arithmetic number, because the mean of its divisors is an integer number (5886999).

Almost surely, 2^11773997 is an apocalyptic number.

It is an amenable number.

11773997 is a deficient number, since it is larger than the sum of its proper divisors (1).

11773997 is an equidigital number, since it uses as much as digits as its factorization.

11773997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 83349, while the sum is 44.

The square root of 11773997 is about 3431.3258370490. The cubic root of 11773997 is about 227.4964585046.

The spelling of 11773997 in words is "eleven million, seven hundred seventy-three thousand, nine hundred ninety-seven".