4009601 has 4 divisors (see below), whose sum is σ = 4014804. Its totient is φ = 4004400.

The previous prime is 4009549. The next prime is 4009619. The reversal of 4009601 is 1069004.

4009601 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.

It can be written as a sum of positive squares in 2 ways, for example, as 3330625 + 678976 = 1825^2 + 824^2 .

It is a cyclic number.

It is not a de Polignac number, because 4009601 - 2¹⁰ = 4008577 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 14.

It is not an unprimeable number, because it can be changed into a prime (4009631) 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, 1190 + ... + 3071.

It is an arithmetic number, because the mean of its divisors is an integer number (1003701).

Almost surely, 2^4009601 is an apocalyptic number.

4009601 is the 896-th centered decagonal number.

It is an amenable number.

4009601 is a deficient number, since it is larger than the sum of its proper divisors (5203).

4009601 is an equidigital number, since it uses as much as digits as its factorization.

4009601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5202.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 4009601 is about 2002.3988114259. The cubic root of 4009601 is about 158.8670090298.

It can be divided in two parts, 400 and 9601, that added together give a palindrome (10001).

The spelling of 4009601 in words is "four million, nine thousand, six hundred one".