2681869 has 16 divisors (see below), whose sum is σ = 3127680. Its totient is φ = 2287296.

The previous prime is 2681863. The next prime is 2681873. The reversal of 2681869 is 9681862.

It is not a de Polignac number, because 2681869 - 2¹³ = 2673677 is a prime.

It is a super-2 number, since 2×2681869² = 14384842666322, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2681863) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 116592 + ... + 116614.

It is an arithmetic number, because the mean of its divisors is an integer number (195480).

2^2681869 is an apocalyptic number.

It is an amenable number.

2681869 is a deficient number, since it is larger than the sum of its proper divisors (445811).

2681869 is an equidigital number, since it uses as much as digits as its factorization.

2681869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97 (or 59 counting only the distinct ones).

The product of its digits is 41472, while the sum is 40.

The square root of 2681869 is about 1637.6412916143. The cubic root of 2681869 is about 138.9352734199.

The spelling of 2681869 in words is "two million, six hundred eighty-one thousand, eight hundred sixty-nine".