4486861 has 4 divisors (see below), whose sum is σ = 4750812. Its totient is φ = 4222912.

The previous prime is 4486849. The next prime is 4486877. The reversal of 4486861 is 1686844.

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 1946025 + 2540836 = 1395^2 + 1594^2 .

It is a cyclic number.

It is not a de Polignac number, because 4486861 - 2⁵ = 4486829 is a prime.

It is an Ulam number.

It is a Duffinian number.

4486861 is a lucky number.

It is a self number, because there is not a number n which added to its sum of digits gives 4486861.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4486841) 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, 131950 + ... + 131983.

It is an arithmetic number, because the mean of its divisors is an integer number (1187703).

Almost surely, 2^4486861 is an apocalyptic number.

It is an amenable number.

4486861 is a deficient number, since it is larger than the sum of its proper divisors (263951).

4486861 is a wasteful number, since it uses less digits than its factorization.

4486861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 263950.

The product of its digits is 36864, while the sum is 37.

The square root of 4486861 is about 2118.2211876950. The cubic root of 4486861 is about 164.9355242423.

The spelling of 4486861 in words is "four million, four hundred eighty-six thousand, eight hundred sixty-one".