3640934 has 16 divisors (see below), whose sum is σ = 5999616. Its totient is φ = 1643400.

The previous prime is 3640933. The next prime is 3640937. The reversal of 3640934 is 4390463.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 3640897 and 3640906.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3640933) 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, 3179 + ... + 4169.

It is an arithmetic number, because the mean of its divisors is an integer number (374976).

Almost surely, 2^3640934 is an apocalyptic number.

3640934 is a deficient number, since it is larger than the sum of its proper divisors (2358682).

3640934 is a wasteful number, since it uses less digits than its factorization.

3640934 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1171.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 3640934 is about 1908.1231616434. The cubic root of 3640934 is about 153.8405895295.

The spelling of 3640934 in words is "three million, six hundred forty thousand, nine hundred thirty-four".