3639412 has 24 divisors (see below), whose sum is σ = 7663040. Its totient is φ = 1477440.

The previous prime is 3639409. The next prime is 3639421. The reversal of 3639412 is 2149363.

3639412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an Ulam number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 2889 + ... + 3952.

Almost surely, 2^3639412 is an apocalyptic number.

It is an amenable number.

3639412 is an abundant number, since it is smaller than the sum of its proper divisors (4023628).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3639412 is a wasteful number, since it uses less digits than its factorization.

3639412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6871 (or 6869 counting only the distinct ones).

The product of its digits is 3888, while the sum is 28.

The square root of 3639412 is about 1907.7242987392. The cubic root of 3639412 is about 153.8191501579.

The spelling of 3639412 in words is "three million, six hundred thirty-nine thousand, four hundred twelve".