5637493 has 2 divisors, whose sum is σ = 5637494. Its totient is φ = 5637492.

The previous prime is 5637481. The next prime is 5637521. The reversal of 5637493 is 3947365.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5008644 + 628849 = 2238^2 + 793^2 .

It is a cyclic number.

It is not a de Polignac number, because 5637493 - 2¹⁷ = 5506421 is a prime.

It is an Ulam number.

5637493 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5637473) 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, 2818746 + 2818747.

It is an arithmetic number, because the mean of its divisors is an integer number (2818747).

Almost surely, 2^5637493 is an apocalyptic number.

It is an amenable number.

5637493 is a deficient number, since it is larger than the sum of its proper divisors (1).

5637493 is an equidigital number, since it uses as much as digits as its factorization.

5637493 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 68040, while the sum is 37.

The square root of 5637493 is about 2374.3405400237. The cubic root of 5637493 is about 177.9762308875.

Subtracting from 5637493 its product of digits (68040), we obtain a triangular number (5569453 = T₃₃₃₇).

The spelling of 5637493 in words is "five million, six hundred thirty-seven thousand, four hundred ninety-three".