2893681 has 8 divisors (see below), whose sum is σ = 3481280. Its totient is φ = 2349648.

The previous prime is 2893679. The next prime is 2893703. The reversal of 2893681 is 1863982.

2893681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2893681 - 2¹ = 2893679 is a prime.

It is a super-2 number, since 2×2893681² = 16746779459522, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2893681.

It is not an unprimeable number, because it can be changed into a prime (2893651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10746 + ... + 11011.

It is an arithmetic number, because the mean of its divisors is an integer number (435160).

2^2893681 is an apocalyptic number.

It is an amenable number.

2893681 is a deficient number, since it is larger than the sum of its proper divisors (587599).

2893681 is a wasteful number, since it uses less digits than its factorization.

2893681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21783.

The product of its digits is 20736, while the sum is 37.

The square root of 2893681 is about 1701.0823025357. The cubic root of 2893681 is about 142.5006627649.

The spelling of 2893681 in words is "two million, eight hundred ninety-three thousand, six hundred eighty-one".