11968897 has 2 divisors, whose sum is σ = 11968898. Its totient is φ = 11968896.

The previous prime is 11968877. The next prime is 11968903. The reversal of 11968897 is 79886911.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11771761 + 197136 = 3431^2 + 444^2 .

It is a cyclic number.

It is not a de Polignac number, because 11968897 - 2⁷ = 11968769 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11968897.

It is not a weakly prime, because it can be changed into another prime (11968877) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5984448 + 5984449.

It is an arithmetic number, because the mean of its divisors is an integer number (5984449).

Almost surely, 2^11968897 is an apocalyptic number.

It is an amenable number.

11968897 is a deficient number, since it is larger than the sum of its proper divisors (1).

11968897 is an equidigital number, since it uses as much as digits as its factorization.

11968897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 217728, while the sum is 49.

The square root of 11968897 is about 3459.6093710129. The cubic root of 11968897 is about 228.7448771086.

The spelling of 11968897 in words is "eleven million, nine hundred sixty-eight thousand, eight hundred ninety-seven".