4032861 has 16 divisors (see below), whose sum is σ = 6185088. Its totient is φ = 2289600.

The previous prime is 4032851. The next prime is 4032863. The reversal of 4032861 is 1682304.

It is a happy number.

It is not a de Polignac number, because 4032861 - 2⁷ = 4032733 is a prime.

It is a Curzon number.

4032861 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4032863) 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 15 ways as a sum of consecutive naturals, for example, 3271 + ... + 4331.

It is an arithmetic number, because the mean of its divisors is an integer number (386568).

Almost surely, 2^4032861 is an apocalyptic number.

It is an amenable number.

4032861 is a deficient number, since it is larger than the sum of its proper divisors (2152227).

4032861 is a wasteful number, since it uses less digits than its factorization.

4032861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1252.

The product of its (nonzero) digits is 1152, while the sum is 24.

The square root of 4032861 is about 2008.1984463693. The cubic root of 4032861 is about 159.1736167696.

The spelling of 4032861 in words is "four million, thirty-two thousand, eight hundred sixty-one".