5637997 has 2 divisors, whose sum is σ = 5637998. Its totient is φ = 5637996.

The previous prime is 5637959. The next prime is 5638019. The reversal of 5637997 is 7997365.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5294601 + 343396 = 2301^2 + 586^2 .

It is a cyclic number.

It is not a de Polignac number, because 5637997 - 2¹⁹ = 5113709 is a prime.

It is an Ulam number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5637917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2818998 + 2818999.

It is an arithmetic number, because the mean of its divisors is an integer number (2818999).

Almost surely, 2^5637997 is an apocalyptic number.

It is an amenable number.

5637997 is a deficient number, since it is larger than the sum of its proper divisors (1).

5637997 is an equidigital number, since it uses as much as digits as its factorization.

5637997 is an evil number, because the sum of its binary digits is even.

The product of its digits is 357210, while the sum is 46.

The square root of 5637997 is about 2374.4466723850. The cubic root of 5637997 is about 177.9815345066.

The spelling of 5637997 in words is "five million, six hundred thirty-seven thousand, nine hundred ninety-seven".