3782691 has 24 divisors (see below), whose sum is σ = 6277440. Its totient is φ = 2170800.

The previous prime is 3782689. The next prime is 3782699. The reversal of 3782691 is 1962873.

3782691 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3782691 - 2¹ = 3782689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (3782699) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 876 + ... + 2886.

It is an arithmetic number, because the mean of its divisors is an integer number (261560).

Almost surely, 2^3782691 is an apocalyptic number.

3782691 is a deficient number, since it is larger than the sum of its proper divisors (2494749).

3782691 is a wasteful number, since it uses less digits than its factorization.

3782691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2047 (or 2044 counting only the distinct ones).

The product of its digits is 18144, while the sum is 36.

The square root of 3782691 is about 1944.9141369222. The cubic root of 3782691 is about 155.8117798998.

It can be divided in two parts, 37 and 82691, that added together give a palindrome (82728).

The spelling of 3782691 in words is "three million, seven hundred eighty-two thousand, six hundred ninety-one".