4204861 has 4 divisors (see below), whose sum is σ = 4284252. Its totient is φ = 4125472.

The previous prime is 4204859. The next prime is 4204903. The reversal of 4204861 is 1684024.

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 1625625 + 2579236 = 1275^2 + 1606^2 .

It is a cyclic number.

It is not a de Polignac number, because 4204861 - 2¹ = 4204859 is a prime.

It is a Duffinian number.

4204861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4204061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39616 + ... + 39721.

It is an arithmetic number, because the mean of its divisors is an integer number (1071063).

Almost surely, 2^4204861 is an apocalyptic number.

It is an amenable number.

4204861 is a deficient number, since it is larger than the sum of its proper divisors (79391).

4204861 is an equidigital number, since it uses as much as digits as its factorization.

4204861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79390.

The product of its (nonzero) digits is 1536, while the sum is 25.

The square root of 4204861 is about 2050.5757728014. The cubic root of 4204861 is about 161.4050856569.

Adding to 4204861 its reverse (1684024), we get a palindrome (5888885).

The spelling of 4204861 in words is "four million, two hundred four thousand, eight hundred sixty-one".