3639601 has 4 divisors (see below), whose sum is σ = 4159552. Its totient is φ = 3119652.

The previous prime is 3639593. The next prime is 3639631. The reversal of 3639601 is 1069363.

3639601 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, 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 3639601 - 2³ = 3639593 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 3639601.

It is not an unprimeable number, because it can be changed into a prime (3639631) 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, 259965 + ... + 259978.

It is an arithmetic number, because the mean of its divisors is an integer number (1039888).

Almost surely, 2^3639601 is an apocalyptic number.

It is an amenable number.

3639601 is a deficient number, since it is larger than the sum of its proper divisors (519951).

3639601 is an equidigital number, since it uses as much as digits as its factorization.

3639601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 519950.

The product of its (nonzero) digits is 2916, while the sum is 28.

The square root of 3639601 is about 1907.7738335557. The cubic root of 3639601 is about 153.8218127965.

It can be divided in two parts, 36 and 39601, that multiplied together give a square (1425636 = 1194²).

The spelling of 3639601 in words is "three million, six hundred thirty-nine thousand, six hundred one".