3899189 has 4 divisors (see below), whose sum is σ = 4456224. Its totient is φ = 3342156.

The previous prime is 3899177. The next prime is 3899191. The reversal of 3899189 is 9819983.

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, and also an emirpimes, since its reverse is a distinct semiprime: 9819983 = 151 ⋅65033.

It is a cyclic number.

It is not a de Polignac number, because 3899189 - 2⁴ = 3899173 is a prime.

It is a Duffinian number.

It is a plaindrome in base 11.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3899989) 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, 278507 + ... + 278520.

It is an arithmetic number, because the mean of its divisors is an integer number (1114056).

Almost surely, 2^3899189 is an apocalyptic number.

It is an amenable number.

3899189 is a deficient number, since it is larger than the sum of its proper divisors (557035).

3899189 is an equidigital number, since it uses as much as digits as its factorization.

3899189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 557034.

The product of its digits is 139968, while the sum is 47.

The square root of 3899189 is about 1974.6364222307. The cubic root of 3899189 is about 157.3951801084.

The spelling of 3899189 in words is "three million, eight hundred ninety-nine thousand, one hundred eighty-nine".