11559997 has 2 divisors, whose sum is σ = 11559998. Its totient is φ = 11559996.

The previous prime is 11559973. The next prime is 11560019. The reversal of 11559997 is 79995511.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10830681 + 729316 = 3291^2 + 854^2 .

It is a cyclic number.

It is not a de Polignac number, because 11559997 - 2¹⁹ = 11035709 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11559917) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5779998 + 5779999.

It is an arithmetic number, because the mean of its divisors is an integer number (5779999).

Almost surely, 2^11559997 is an apocalyptic number.

It is an amenable number.

11559997 is a deficient number, since it is larger than the sum of its proper divisors (1).

11559997 is an equidigital number, since it uses as much as digits as its factorization.

11559997 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 127575, while the sum is 46.

The square root of 11559997 is about 3399.9995588235. Note that the first 3 decimals coincide. The cubic root of 11559997 is about 226.1097243059.

The spelling of 11559997 in words is "eleven million, five hundred fifty-nine thousand, nine hundred ninety-seven".