4431601 has 4 divisors (see below), whose sum is σ = 4551412. Its totient is φ = 4311792.

The previous prime is 4431587. The next prime is 4431641. The reversal of 4431601 is 1061344.

It is a happy number.

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 3996001 + 435600 = 1999^2 + 660^2 .

It is a cyclic number.

It is not a de Polignac number, because 4431601 - 2⁵ = 4431569 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4431641) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59850 + ... + 59923.

It is an arithmetic number, because the mean of its divisors is an integer number (1137853).

Almost surely, 2^4431601 is an apocalyptic number.

It is an amenable number.

4431601 is a deficient number, since it is larger than the sum of its proper divisors (119811).

4431601 is a wasteful number, since it uses less digits than its factorization.

4431601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119810.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 4431601 is about 2105.1368126561. The cubic root of 4431601 is about 164.2556122001.

Adding to 4431601 its reverse (1061344), we get a palindrome (5492945).

The spelling of 4431601 in words is "four million, four hundred thirty-one thousand, six hundred one".