3729605 has 32 divisors (see below), whose sum is σ = 5322240. Its totient is φ = 2479680.

The previous prime is 3729589. The next prime is 3729629. The reversal of 3729605 is 5069273.

3729605 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3729605 - 2⁴ = 3729589 is a prime.

It is a Curzon 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 31 ways as a sum of consecutive naturals, for example, 44894 + ... + 44976.

It is an arithmetic number, because the mean of its divisors is an integer number (166320).

Almost surely, 2^3729605 is an apocalyptic number.

3729605 is the 1577-th pentagonal number.

It is an amenable number.

3729605 is a deficient number, since it is larger than the sum of its proper divisors (1592635).

3729605 is a wasteful number, since it uses less digits than its factorization.

3729605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161.

The product of its (nonzero) digits is 11340, while the sum is 32.

The square root of 3729605 is about 1931.2185272516. The cubic root of 3729605 is about 155.0794597788.

It can be divided in two parts, 3729 and 605, that added together give a palindrome (4334).

The spelling of 3729605 in words is "three million, seven hundred twenty-nine thousand, six hundred five".