3705641 has 4 divisors (see below), whose sum is σ = 3715284. Its totient is φ = 3696000.

The previous prime is 3705629. The next prime is 3705659. The reversal of 3705641 is 1465073.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 3667225 + 38416 = 1915^2 + 196^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-3705641 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 3705641.

It is not an unprimeable number, because it can be changed into a prime (3705041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4220 + ... + 5021.

It is an arithmetic number, because the mean of its divisors is an integer number (928821).

Almost surely, 2^3705641 is an apocalyptic number.

It is an amenable number.

3705641 is a deficient number, since it is larger than the sum of its proper divisors (9643).

3705641 is an equidigital number, since it uses as much as digits as its factorization.

3705641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9642.

The product of its (nonzero) digits is 2520, while the sum is 26.

The square root of 3705641 is about 1925.0041558397. The cubic root of 3705641 is about 154.7465994835.

The spelling of 3705641 in words is "three million, seven hundred five thousand, six hundred forty-one".