3680389 has 4 divisors (see below), whose sum is σ = 3691840. Its totient is φ = 3668940.

The previous prime is 3680371. The next prime is 3680399. The reversal of 3680389 is 9830863.

It is a happy number.

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 3680389 - 2⁹ = 3679877 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 (3680399) 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, 5229 + ... + 5890.

It is an arithmetic number, because the mean of its divisors is an integer number (922960).

Almost surely, 2^3680389 is an apocalyptic number.

It is an amenable number.

3680389 is a deficient number, since it is larger than the sum of its proper divisors (11451).

3680389 is a wasteful number, since it uses less digits than its factorization.

3680389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11450.

The product of its (nonzero) digits is 31104, while the sum is 37.

The square root of 3680389 is about 1918.4339967797. The cubic root of 3680389 is about 154.3942923651.

The spelling of 3680389 in words is "three million, six hundred eighty thousand, three hundred eighty-nine".