2647081 has 2 divisors, whose sum is σ = 2647082. Its totient is φ = 2647080.

The previous prime is 2647079. The next prime is 2647097. The reversal of 2647081 is 1807462.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2128681 + 518400 = 1459^2 + 720^2 .

It is a cyclic number.

It is not a de Polignac number, because 2647081 - 2¹ = 2647079 is a prime.

It is a super-2 number, since 2×2647081² = 14014075641122, which contains 22 as substring.

Together with 2647079, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (2647031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1323540 + 1323541.

It is an arithmetic number, because the mean of its divisors is an integer number (1323541).

2^2647081 is an apocalyptic number.

It is an amenable number.

2647081 is a deficient number, since it is larger than the sum of its proper divisors (1).

2647081 is an equidigital number, since it uses as much as digits as its factorization.

2647081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 2647081 is about 1626.9852488575. The cubic root of 2647081 is about 138.3319217288.

The spelling of 2647081 in words is "two million, six hundred forty-seven thousand, eighty-one".