4082861 has 4 divisors (see below), whose sum is σ = 4088352. Its totient is φ = 4077372.

The previous prime is 4082857. The next prime is 4082879. The reversal of 4082861 is 1682804.

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 4082861 - 2² = 4082857 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 (4082831) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1415 + ... + 3188.

It is an arithmetic number, because the mean of its divisors is an integer number (1022088).

Almost surely, 2^4082861 is an apocalyptic number.

It is an amenable number.

4082861 is a deficient number, since it is larger than the sum of its proper divisors (5491).

4082861 is an equidigital number, since it uses as much as digits as its factorization.

4082861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5490.

The product of its (nonzero) digits is 3072, while the sum is 29.

The square root of 4082861 is about 2020.6090665935. The cubic root of 4082861 is about 159.8287360153.

The spelling of 4082861 in words is "four million, eighty-two thousand, eight hundred sixty-one".