2701681 has 4 divisors (see below), whose sum is σ = 2788864. Its totient is φ = 2614500.

The previous prime is 2701679. The next prime is 2701687. The reversal of 2701681 is 1861072.

2701681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 2701681 - 2¹ = 2701679 is a prime.

It is a super-2 number, since 2×2701681² = 14598160451522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2701687) 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 3 ways as a sum of consecutive naturals, for example, 43545 + ... + 43606.

It is an arithmetic number, because the mean of its divisors is an integer number (697216).

2^2701681 is an apocalyptic number.

It is an amenable number.

2701681 is a deficient number, since it is larger than the sum of its proper divisors (87183).

2701681 is an equidigital number, since it uses as much as digits as its factorization.

2701681 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87182.

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 2701681 is about 1643.6791049350. The cubic root of 2701681 is about 139.2765572014.

It can be divided in two parts, 2701 and 681, that multiplied together give a palindrome (1839381).

The spelling of 2701681 in words is "two million, seven hundred one thousand, six hundred eighty-one".