3874389 has 8 divisors (see below), whose sum is σ = 5207040. Its totient is φ = 2562336.

The previous prime is 3874379. The next prime is 3874391. The reversal of 3874389 is 9834783.

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

It is not a de Polignac number, because 3874389 - 2⁸ = 3874133 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 3874389.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3874319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4704 + ... + 5465.

It is an arithmetic number, because the mean of its divisors is an integer number (650880).

Almost surely, 2^3874389 is an apocalyptic number.

It is an amenable number.

3874389 is a deficient number, since it is larger than the sum of its proper divisors (1332651).

3874389 is a wasteful number, since it uses less digits than its factorization.

3874389 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10299.

The product of its digits is 145152, while the sum is 42.

The square root of 3874389 is about 1968.3467682296. The cubic root of 3874389 is about 157.0607767724.

The spelling of 3874389 in words is "three million, eight hundred seventy-four thousand, three hundred eighty-nine".