3800189 has 4 divisors (see below), whose sum is σ = 3931260. Its totient is φ = 3669120.

The previous prime is 3800183. The next prime is 3800201. The reversal of 3800189 is 9810083.

3800189 = T₂₅₁ + T₂₅₂ + ... + T₃₃₇.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 765625 + 3034564 = 875^2 + 1742^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3800189 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 131041 = 3800189 / (3 + 8 + 0 + 0 + 1 + 8 + 9).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3800183) 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, 65492 + ... + 65549.

It is an arithmetic number, because the mean of its divisors is an integer number (982815).

Almost surely, 2^3800189 is an apocalyptic number.

It is an amenable number.

3800189 is a deficient number, since it is larger than the sum of its proper divisors (131071).

3800189 is a wasteful number, since it uses less digits than its factorization.

3800189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131070.

The product of its (nonzero) digits is 1728, while the sum is 29.

The square root of 3800189 is about 1949.4073458362. The cubic root of 3800189 is about 156.0516621573.

The spelling of 3800189 in words is "three million, eight hundred thousand, one hundred eighty-nine".