2612681 has 8 divisors (see below), whose sum is σ = 2703624. Its totient is φ = 2522880.

The previous prime is 2612677. The next prime is 2612699. The reversal of 2612681 is 1862162.

It can be written as a sum of positive squares in 4 ways, for example, as 1915456 + 697225 = 1384^2 + 835^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 2612681 - 2² = 2612677 is a prime.

It is a super-2 number, since 2×2612681² = 13652204015522, 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 2612681.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2612651) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8771 + ... + 9063.

It is an arithmetic number, because the mean of its divisors is an integer number (337953).

2^2612681 is an apocalyptic number.

It is an amenable number.

2612681 is a deficient number, since it is larger than the sum of its proper divisors (90943).

2612681 is a wasteful number, since it uses less digits than its factorization.

2612681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 571.

The product of its digits is 1152, while the sum is 26.

The square root of 2612681 is about 1616.3789778390. The cubic root of 2612681 is about 137.7300787065.

The spelling of 2612681 in words is "two million, six hundred twelve thousand, six hundred eighty-one".