2486861 has 4 divisors (see below), whose sum is σ = 2678172. Its totient is φ = 2295552.

The previous prime is 2486857. The next prime is 2486863. The reversal of 2486861 is 1686842.

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 609961 + 1876900 = 781^2 + 1370^2 .

It is a cyclic number.

It is not a de Polignac number, because 2486861 - 2² = 2486857 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2486863) 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, 95636 + ... + 95661.

It is an arithmetic number, because the mean of its divisors is an integer number (669543).

2^2486861 is an apocalyptic number.

It is an amenable number.

2486861 is a deficient number, since it is larger than the sum of its proper divisors (191311).

2486861 is a wasteful number, since it uses less digits than its factorization.

2486861 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191310.

The product of its digits is 18432, while the sum is 35.

The square root of 2486861 is about 1576.9784399287. The cubic root of 2486861 is about 135.4826981898.

The spelling of 2486861 in words is "two million, four hundred eighty-six thousand, eight hundred sixty-one".