3891234 has 16 divisors (see below), whose sum is σ = 7819488. Its totient is φ = 1290912.

The previous prime is 3891229. The next prime is 3891241. The reversal of 3891234 is 4321983.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 67 + ... + 2790.

It is an arithmetic number, because the mean of its divisors is an integer number (488718).

Almost surely, 2^3891234 is an apocalyptic number.

3891234 is an abundant number, since it is smaller than the sum of its proper divisors (3928254).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3891234 is a wasteful number, since it uses less digits than its factorization.

3891234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3089.

The product of its digits is 5184, while the sum is 30.

The square root of 3891234 is about 1972.6210989442. The cubic root of 3891234 is about 157.2880697061.

The spelling of 3891234 in words is "three million, eight hundred ninety-one thousand, two hundred thirty-four".