3643934 has 36 divisors (see below), whose sum is σ = 6775704. Its totient is φ = 1465128.

The previous prime is 3643921. The next prime is 3643951. The reversal of 3643934 is 4393463.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 3643934.

It is a congruent number.

It is an unprimeable number.

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 17 ways as a sum of consecutive naturals, for example, 35327 + ... + 35429.

It is an arithmetic number, because the mean of its divisors is an integer number (188214).

Almost surely, 2^3643934 is an apocalyptic number.

3643934 is a deficient number, since it is larger than the sum of its proper divisors (3131770).

3643934 is a wasteful number, since it uses less digits than its factorization.

3643934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 157 (or 131 counting only the distinct ones).

The product of its digits is 23328, while the sum is 32.

The square root of 3643934 is about 1908.9091125562. The cubic root of 3643934 is about 153.8828309862.

The spelling of 3643934 in words is "three million, six hundred forty-three thousand, nine hundred thirty-four".