3689237 has 2 divisors, whose sum is σ = 3689238. Its totient is φ = 3689236.

The previous prime is 3689209. The next prime is 3689263. The reversal of 3689237 is 7329863.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2149156 + 1540081 = 1466^2 + 1241^2 .

It is a cyclic number.

It is not a de Polignac number, because 3689237 - 2⁸ = 3688981 is a prime.

It is a super-2 number, since 2×3689237² = 27220939284338, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 3689237.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3689207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1844618 + 1844619.

It is an arithmetic number, because the mean of its divisors is an integer number (1844619).

Almost surely, 2^3689237 is an apocalyptic number.

It is an amenable number.

3689237 is a deficient number, since it is larger than the sum of its proper divisors (1).

3689237 is an equidigital number, since it uses as much as digits as its factorization.

3689237 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 38.

The square root of 3689237 is about 1920.7386599952. The cubic root of 3689237 is about 154.5179194627.

The spelling of 3689237 in words is "three million, six hundred eighty-nine thousand, two hundred thirty-seven".