3657859 has 2 divisors, whose sum is σ = 3657860. Its totient is φ = 3657858.

The previous prime is 3657847. The next prime is 3657877. The reversal of 3657859 is 9587563.

3657859 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 3657859 - 2⁵ = 3657827 is a prime.

It is not a weakly prime, because it can be changed into another prime (3657259) 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, 1828929 + 1828930.

It is an arithmetic number, because the mean of its divisors is an integer number (1828930).

Almost surely, 2^3657859 is an apocalyptic number.

3657859 is a deficient number, since it is larger than the sum of its proper divisors (1).

3657859 is an equidigital number, since it uses as much as digits as its factorization.

3657859 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 226800, while the sum is 43.

The square root of 3657859 is about 1912.5530058014. The cubic root of 3657859 is about 154.0785987714.

The spelling of 3657859 in words is "three million, six hundred fifty-seven thousand, eight hundred fifty-nine".