3694687 has 4 divisors (see below), whose sum is σ = 3822120. Its totient is φ = 3567256.

The previous prime is 3694679. The next prime is 3694693. The reversal of 3694687 is 7864963.

It is a happy number.

3694687 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7864963 = 1931 ⋅4073.

It is a cyclic number.

It is not a de Polignac number, because 3694687 - 2³ = 3694679 is a prime.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3694637) 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 3 ways as a sum of consecutive naturals, for example, 63673 + ... + 63730.

It is an arithmetic number, because the mean of its divisors is an integer number (955530).

Almost surely, 2^3694687 is an apocalyptic number.

3694687 is a deficient number, since it is larger than the sum of its proper divisors (127433).

3694687 is a wasteful number, since it uses less digits than its factorization.

3694687 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127432.

The product of its digits is 217728, while the sum is 43.

The square root of 3694687 is about 1922.1568614450. The cubic root of 3694687 is about 154.5939702667.

The spelling of 3694687 in words is "three million, six hundred ninety-four thousand, six hundred eighty-seven".