2622681 has 12 divisors (see below), whose sum is σ = 3802708. Its totient is φ = 1741824.

The previous prime is 2622679. The next prime is 2622691. The reversal of 2622681 is 1862262.

It can be written as a sum of positive squares in 2 ways, for example, as 549081 + 2073600 = 741^2 + 1440^2 .

It is not a de Polignac number, because 2622681 - 2¹ = 2622679 is a prime.

It is a super-2 number, since 2×2622681² = 13756911255522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2622601) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3561 + ... + 4233.

2^2622681 is an apocalyptic number.

2622681 is the 866-th nonagonal number.

It is an amenable number.

2622681 is a deficient number, since it is larger than the sum of its proper divisors (1180027).

2622681 is a wasteful number, since it uses less digits than its factorization.

2622681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1112 (or 1109 counting only the distinct ones).

The product of its digits is 2304, while the sum is 27.

The square root of 2622681 is about 1619.4693575366. The cubic root of 2622681 is about 137.9055749769.

The spelling of 2622681 in words is "two million, six hundred twenty-two thousand, six hundred eighty-one".