3744391 has 4 divisors (see below), whose sum is σ = 4279312. Its totient is φ = 3209472.

The previous prime is 3744383. The next prime is 3744401. The reversal of 3744391 is 1934473.

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

It is not a de Polignac number, because 3744391 - 2³ = 3744383 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 (3744361) 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, 267450 + ... + 267463.

It is an arithmetic number, because the mean of its divisors is an integer number (1069828).

Almost surely, 2^3744391 is an apocalyptic number.

3744391 is a deficient number, since it is larger than the sum of its proper divisors (534921).

3744391 is an equidigital number, since it uses as much as digits as its factorization.

3744391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 534920.

The product of its digits is 9072, while the sum is 31.

The square root of 3744391 is about 1935.0428935814. The cubic root of 3744391 is about 155.2841267919.

The spelling of 3744391 in words is "three million, seven hundred forty-four thousand, three hundred ninety-one".