2670881 has 2 divisors, whose sum is σ = 2670882. Its totient is φ = 2670880.

The previous prime is 2670817. The next prime is 2670923. The reversal of 2670881 is 1880762.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2016400 + 654481 = 1420^2 + 809^2 .

It is a cyclic number.

It is not a de Polignac number, because 2670881 - 2⁶ = 2670817 is a prime.

It is a super-2 number, since 2×2670881² = 14267210632322, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2670181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1335440 + 1335441.

It is an arithmetic number, because the mean of its divisors is an integer number (1335441).

2^2670881 is an apocalyptic number.

It is an amenable number.

2670881 is a deficient number, since it is larger than the sum of its proper divisors (1).

2670881 is an equidigital number, since it uses as much as digits as its factorization.

2670881 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5376, while the sum is 32.

The square root of 2670881 is about 1634.2830232246. The cubic root of 2670881 is about 138.7452678093.

It can be divided in two parts, 26 and 70881, that added together give a palindrome (70907).

The spelling of 2670881 in words is "two million, six hundred seventy thousand, eight hundred eighty-one".