3945601 has 4 divisors (see below), whose sum is σ = 4304304. Its totient is φ = 3586900.

The previous prime is 3945527. The next prime is 3945607. The reversal of 3945601 is 1065493.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 3945601 - 2¹⁵ = 3912833 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 3945601.

It is not an unprimeable number, because it can be changed into a prime (3945607) 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, 179335 + ... + 179356.

It is an arithmetic number, because the mean of its divisors is an integer number (1076076).

Almost surely, 2^3945601 is an apocalyptic number.

It is an amenable number.

3945601 is a deficient number, since it is larger than the sum of its proper divisors (358703).

3945601 is a wasteful number, since it uses less digits than its factorization.

3945601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 358702.

The product of its (nonzero) digits is 3240, while the sum is 28.

The square root of 3945601 is about 1986.3536945871. The cubic root of 3945601 is about 158.0172095766.

It can be divided in two parts, 394 and 5601, that added together give a palindrome (5995).

The spelling of 3945601 in words is "three million, nine hundred forty-five thousand, six hundred one".