5636437 has 2 divisors, whose sum is σ = 5636438. Its totient is φ = 5636436.

The previous prime is 5636419. The next prime is 5636453. The reversal of 5636437 is 7346365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 3896676 + 1739761 = 1974^2 + 1319^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-5636437 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5636467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2818218 + 2818219.

It is an arithmetic number, because the mean of its divisors is an integer number (2818219).

Almost surely, 2^5636437 is an apocalyptic number.

It is an amenable number.

5636437 is a deficient number, since it is larger than the sum of its proper divisors (1).

5636437 is an equidigital number, since it uses as much as digits as its factorization.

5636437 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 45360, while the sum is 34.

The square root of 5636437 is about 2374.1181520725. The cubic root of 5636437 is about 177.9651175175.

Subtracting from 5636437 its sum of digits (34), we obtain a triangular number (5636403 = T₃₃₅₇).

The spelling of 5636437 in words is "five million, six hundred thirty-six thousand, four hundred thirty-seven".