3640339 has 4 divisors (see below), whose sum is σ = 3646840. Its totient is φ = 3633840.

The previous prime is 3640333. The next prime is 3640369. The reversal of 3640339 is 9330463.

3640339 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.

It is a cyclic number.

It is not a de Polignac number, because 3640339 - 2³ = 3640331 is a prime.

It is a Duffinian number.

3640339 is a lucky number.

It is not an unprimeable number, because it can be changed into a prime (3640331) 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, 2322 + ... + 3559.

It is an arithmetic number, because the mean of its divisors is an integer number (911710).

Almost surely, 2^3640339 is an apocalyptic number.

3640339 is a deficient number, since it is larger than the sum of its proper divisors (6501).

3640339 is an equidigital number, since it uses as much as digits as its factorization.

3640339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6500.

The product of its (nonzero) digits is 5832, while the sum is 28.

The square root of 3640339 is about 1907.9672429054. The cubic root of 3640339 is about 153.8322088835.

The spelling of 3640339 in words is "three million, six hundred forty thousand, three hundred thirty-nine".