5635669 has 4 divisors (see below), whose sum is σ = 6069196. Its totient is φ = 5202144.

The previous prime is 5635661. The next prime is 5635681. The reversal of 5635669 is 9665365.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1077444 + 4558225 = 1038^2 + 2135^2 .

It is a cyclic number.

It is not a de Polignac number, because 5635669 - 2³ = 5635661 is a prime.

It is a super-2 number, since 2×5635669² = 63521530155122, which contains 22 as substring.

It is a Duffinian number.

5635669 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5635661) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 216744 + ... + 216769.

It is an arithmetic number, because the mean of its divisors is an integer number (1517299).

Almost surely, 2^5635669 is an apocalyptic number.

It is an amenable number.

5635669 is a deficient number, since it is larger than the sum of its proper divisors (433527).

5635669 is a wasteful number, since it uses less digits than its factorization.

5635669 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 433526.

The product of its digits is 145800, while the sum is 40.

The square root of 5635669 is about 2373.9564022955. The cubic root of 5635669 is about 177.9570341948.

The spelling of 5635669 in words is "five million, six hundred thirty-five thousand, six hundred sixty-nine".