5635997 has 4 divisors (see below), whose sum is σ = 5641020. Its totient is φ = 5630976.

The previous prime is 5635979. The next prime is 5635999. The reversal of 5635997 is 7995365.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 2172676 + 3463321 = 1474^2 + 1861^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5635997 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5635999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29 + ... + 3357.

It is an arithmetic number, because the mean of its divisors is an integer number (1410255).

Almost surely, 2^5635997 is an apocalyptic number.

It is an amenable number.

5635997 is a deficient number, since it is larger than the sum of its proper divisors (5023).

5635997 is a wasteful number, since it uses less digits than its factorization.

5635997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5022.

The product of its digits is 255150, while the sum is 44.

The square root of 5635997 is about 2374.0254842777. The cubic root of 5635997 is about 177.9604865371.

The spelling of 5635997 in words is "five million, six hundred thirty-five thousand, nine hundred ninety-seven".