4491801 has 8 divisors (see below), whose sum is σ = 6654560. Its totient is φ = 2994516.

The previous prime is 4491793. The next prime is 4491811. The reversal of 4491801 is 1081944.

It is not a de Polignac number, because 4491801 - 2³ = 4491793 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 166363 = 4491801 / (4 + 4 + 9 + 1 + 8 + 0 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4491811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 83155 + ... + 83208.

It is an arithmetic number, because the mean of its divisors is an integer number (831820).

Almost surely, 2^4491801 is an apocalyptic number.

It is an amenable number.

4491801 is a deficient number, since it is larger than the sum of its proper divisors (2162759).

4491801 is a wasteful number, since it uses less digits than its factorization.

4491801 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166372 (or 166366 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 27.

The square root of 4491801 is about 2119.3869396597. The cubic root of 4491801 is about 164.9960329625.

The spelling of 4491801 in words is "four million, four hundred ninety-one thousand, eight hundred one".