3705321 has 8 divisors (see below), whose sum is σ = 4963104. Its totient is φ = 2458880.

The previous prime is 3705311. The next prime is 3705329. The reversal of 3705321 is 1235073.

It is a happy number.

3705321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 3705321 - 2⁶ = 3705257 is a prime.

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (3705329) 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 7 ways as a sum of consecutive naturals, for example, 2040 + ... + 3401.

It is an arithmetic number, because the mean of its divisors is an integer number (620388).

Almost surely, 2^3705321 is an apocalyptic number.

It is an amenable number.

3705321 is a deficient number, since it is larger than the sum of its proper divisors (1257783).

3705321 is a wasteful number, since it uses less digits than its factorization.

3705321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5671.

The product of its (nonzero) digits is 630, while the sum is 21.

The square root of 3705321 is about 1924.9210373415. The cubic root of 3705321 is about 154.7421449832.

The spelling of 3705321 in words is "three million, seven hundred five thousand, three hundred twenty-one".