4861409 has 4 divisors (see below), whose sum is σ = 5555904. Its totient is φ = 4166916.

The previous prime is 4861403. The next prime is 4861421. The reversal of 4861409 is 9041684.

4861409 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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 4861409 - 2¹⁶ = 4795873 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4861403) 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, 347237 + ... + 347250.

It is an arithmetic number, because the mean of its divisors is an integer number (1388976).

Almost surely, 2^4861409 is an apocalyptic number.

It is an amenable number.

4861409 is a deficient number, since it is larger than the sum of its proper divisors (694495).

4861409 is an equidigital number, since it uses as much as digits as its factorization.

4861409 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 694494.

The product of its (nonzero) digits is 6912, while the sum is 32.

The square root of 4861409 is about 2204.8603130357. The cubic root of 4861409 is about 169.4028529967.

The spelling of 4861409 in words is "four million, eight hundred sixty-one thousand, four hundred nine".