3791689 has 8 divisors (see below), whose sum is σ = 4187232. Its totient is φ = 3404640.

The previous prime is 3791687. The next prime is 3791701. The reversal of 3791689 is 9861973.

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

It is a cyclic number.

It is not a de Polignac number, because 3791689 - 2¹ = 3791687 is a prime.

It is a Duffinian number.

3791689 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3791681) 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, 1164 + ... + 2989.

It is an arithmetic number, because the mean of its divisors is an integer number (523404).

Almost surely, 2^3791689 is an apocalyptic number.

It is an amenable number.

3791689 is a deficient number, since it is larger than the sum of its proper divisors (395543).

3791689 is a wasteful number, since it uses less digits than its factorization.

3791689 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4247.

The product of its digits is 81648, while the sum is 43.

The square root of 3791689 is about 1947.2259755868. The cubic root of 3791689 is about 155.9352267799.

The spelling of 3791689 in words is "three million, seven hundred ninety-one thousand, six hundred eighty-nine".