4491361 has 4 divisors (see below), whose sum is σ = 5132992. Its totient is φ = 3849732.

The previous prime is 4491359. The next prime is 4491401. The reversal of 4491361 is 1631944.

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 4491361 - 2¹ = 4491359 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4491301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 320805 + ... + 320818.

It is an arithmetic number, because the mean of its divisors is an integer number (1283248).

Almost surely, 2^4491361 is an apocalyptic number.

It is an amenable number.

4491361 is a deficient number, since it is larger than the sum of its proper divisors (641631).

4491361 is an equidigital number, since it uses as much as digits as its factorization.

4491361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 641630.

The product of its digits is 2592, while the sum is 28.

The square root of 4491361 is about 2119.2831335147. The cubic root of 4491361 is about 164.9906453221.

The spelling of 4491361 in words is "four million, four hundred ninety-one thousand, three hundred sixty-one".