3899389 has 8 divisors (see below), whose sum is σ = 4420640. Its totient is φ = 3409776.

The previous prime is 3899383. The next prime is 3899407. The reversal of 3899389 is 9839983.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3899389 - 2³ = 3899381 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 (3899381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7647 + ... + 8140.

It is an arithmetic number, because the mean of its divisors is an integer number (552580).

Almost surely, 2^3899389 is an apocalyptic number.

It is an amenable number.

3899389 is a deficient number, since it is larger than the sum of its proper divisors (521251).

3899389 is a wasteful number, since it uses less digits than its factorization.

3899389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15819.

The product of its digits is 419904, while the sum is 49.

The square root of 3899389 is about 1974.6870638154. The cubic root of 3899389 is about 157.3978711379.

The spelling of 3899389 in words is "three million, eight hundred ninety-nine thousand, three hundred eighty-nine".