5591969 has 2 divisors, whose sum is σ = 5591970. Its totient is φ = 5591968.

The previous prime is 5591941. The next prime is 5591987. The reversal of 5591969 is 9691955.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5085025 + 506944 = 2255^2 + 712^2 .

It is a cyclic number.

It is not a de Polignac number, because 5591969 - 2²⁰ = 4543393 is a prime.

It is a super-2 number, since 2×5591969² = 62540234593922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (5591269) 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, 2795984 + 2795985.

It is an arithmetic number, because the mean of its divisors is an integer number (2795985).

Almost surely, 2^5591969 is an apocalyptic number.

It is an amenable number.

5591969 is a deficient number, since it is larger than the sum of its proper divisors (1).

5591969 is an equidigital number, since it uses as much as digits as its factorization.

5591969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 109350, while the sum is 44.

The square root of 5591969 is about 2364.7344459791. The cubic root of 5591969 is about 177.4958697710.

The spelling of 5591969 in words is "five million, five hundred ninety-one thousand, nine hundred sixty-nine".