2492681 has 4 divisors (see below), whose sum is σ = 2502864. Its totient is φ = 2482500.

The previous prime is 2492657. The next prime is 2492701. The reversal of 2492681 is 1862942.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2492681 - 2¹⁴ = 2476297 is a prime.

It is a super-2 number, since 2×2492681² = 12426917135522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2491681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4715 + ... + 5216.

It is an arithmetic number, because the mean of its divisors is an integer number (625716).

2^2492681 is an apocalyptic number.

It is an amenable number.

2492681 is a deficient number, since it is larger than the sum of its proper divisors (10183).

2492681 is an equidigital number, since it uses as much as digits as its factorization.

2492681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10182.

The product of its digits is 6912, while the sum is 32.

The square root of 2492681 is about 1578.8226626192. The cubic root of 2492681 is about 135.5883058864.

The spelling of 2492681 in words is "two million, four hundred ninety-two thousand, six hundred eighty-one".