2498681 has 4 divisors (see below), whose sum is σ = 2504100. Its totient is φ = 2493264.

The previous prime is 2498659. The next prime is 2498689. The reversal of 2498681 is 1868942.

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 2325625 + 173056 = 1525^2 + 416^2 .

It is a cyclic number.

It is not a de Polignac number, because 2498681 - 2¹⁴ = 2482297 is a prime.

It is a super-2 number, since 2×2498681² = 12486813479522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2498689) 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, 1946 + ... + 2963.

It is an arithmetic number, because the mean of its divisors is an integer number (626025).

2^2498681 is an apocalyptic number.

It is an amenable number.

2498681 is a deficient number, since it is larger than the sum of its proper divisors (5419).

2498681 is an equidigital number, since it uses as much as digits as its factorization.

2498681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5418.

The product of its digits is 27648, while the sum is 38.

The square root of 2498681 is about 1580.7216706302. The cubic root of 2498681 is about 135.6970078519.

The spelling of 2498681 in words is "two million, four hundred ninety-eight thousand, six hundred eighty-one".