4498861 has 4 divisors (see below), whose sum is σ = 4549500. Its totient is φ = 4448224.

The previous prime is 4498859. The next prime is 4498873. The reversal of 4498861 is 1688944.

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 2157961 + 2340900 = 1469^2 + 1530^2 .

It is a cyclic number.

It is not a de Polignac number, because 4498861 - 2¹ = 4498859 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4498831) 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, 25186 + ... + 25363.

It is an arithmetic number, because the mean of its divisors is an integer number (1137375).

Almost surely, 2^4498861 is an apocalyptic number.

It is an amenable number.

4498861 is a deficient number, since it is larger than the sum of its proper divisors (50639).

4498861 is an equidigital number, since it uses as much as digits as its factorization.

4498861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50638.

The product of its digits is 55296, while the sum is 40.

The square root of 4498861 is about 2121.0518616950. The cubic root of 4498861 is about 165.0824320281.

The spelling of 4498861 in words is "four million, four hundred ninety-eight thousand, eight hundred sixty-one".