5599669 has 2 divisors, whose sum is σ = 5599670. Its totient is φ = 5599668.

The previous prime is 5599667. The next prime is 5599679. The reversal of 5599669 is 9669955.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5116644 + 483025 = 2262^2 + 695^2 .

It is a cyclic number.

It is not a de Polignac number, because 5599669 - 2¹ = 5599667 is a prime.

It is a super-2 number, since 2×5599669² = 62712585819122, which contains 22 as substring.

Together with 5599667, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5599663) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2799834 + 2799835.

It is an arithmetic number, because the mean of its divisors is an integer number (2799835).

Almost surely, 2^5599669 is an apocalyptic number.

It is an amenable number.

5599669 is a deficient number, since it is larger than the sum of its proper divisors (1).

5599669 is an equidigital number, since it uses as much as digits as its factorization.

5599669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 656100, while the sum is 49.

The square root of 5599669 is about 2366.3619756918. The cubic root of 5599669 is about 177.5773015150.

It can be divided in two parts, 55996 and 69, that added together give a palindrome (56065).

The spelling of 5599669 in words is "five million, five hundred ninety-nine thousand, six hundred sixty-nine".