3841391 has 4 divisors (see below), whose sum is σ = 4008432. Its totient is φ = 3674352.

The previous prime is 3841381. The next prime is 3841393. The reversal of 3841391 is 1931483.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3841391 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 (3841393) 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, 83486 + ... + 83531.

It is an arithmetic number, because the mean of its divisors is an integer number (1002108).

Almost surely, 2^3841391 is an apocalyptic number.

3841391 is a deficient number, since it is larger than the sum of its proper divisors (167041).

3841391 is a wasteful number, since it uses less digits than its factorization.

3841391 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 167040.

The product of its digits is 2592, while the sum is 29.

The square root of 3841391 is about 1959.9466829483. The cubic root of 3841391 is about 156.6136116311.

The spelling of 3841391 in words is "three million, eight hundred forty-one thousand, three hundred ninety-one".