3659789 has 4 divisors (see below), whose sum is σ = 4182624. Its totient is φ = 3136956.

The previous prime is 3659779. The next prime is 3659791. The reversal of 3659789 is 9879563.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3659789 - 2¹² = 3655693 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3659779) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 261407 + ... + 261420.

It is an arithmetic number, because the mean of its divisors is an integer number (1045656).

Almost surely, 2^3659789 is an apocalyptic number.

It is an amenable number.

3659789 is a deficient number, since it is larger than the sum of its proper divisors (522835).

3659789 is an equidigital number, since it uses as much as digits as its factorization.

3659789 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522834.

The product of its digits is 408240, while the sum is 47.

The square root of 3659789 is about 1913.0575004427. The cubic root of 3659789 is about 154.1056928912.

The spelling of 3659789 in words is "three million, six hundred fifty-nine thousand, seven hundred eighty-nine".