2486749 has 4 divisors (see below), whose sum is σ = 2514780. Its totient is φ = 2458720.

The previous prime is 2486747. The next prime is 2486753. The reversal of 2486749 is 9476842.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9476842 = 2 ⋅4738421.

It can be written as a sum of positive squares in 2 ways, for example, as 822649 + 1664100 = 907^2 + 1290^2 .

It is a cyclic number.

It is not a de Polignac number, because 2486749 - 2¹ = 2486747 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is an Ulam number.

It is a Duffinian number.

2486749 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2486747) 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, 13882 + ... + 14059.

It is an arithmetic number, because the mean of its divisors is an integer number (628695).

2^2486749 is an apocalyptic number.

It is an amenable number.

2486749 is a deficient number, since it is larger than the sum of its proper divisors (28031).

2486749 is an equidigital number, since it uses as much as digits as its factorization.

2486749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28030.

The product of its digits is 96768, while the sum is 40.

The square root of 2486749 is about 1576.9429285805. The cubic root of 2486749 is about 135.4806642616.

The spelling of 2486749 in words is "two million, four hundred eighty-six thousand, seven hundred forty-nine".