2770891 has 2 divisors, whose sum is σ = 2770892. Its totient is φ = 2770890.

The previous prime is 2770883. The next prime is 2770907. The reversal of 2770891 is 1980772.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2770891 - 2³ = 2770883 is a prime.

It is not a weakly prime, because it can be changed into another prime (2770841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1385445 + 1385446.

It is an arithmetic number, because the mean of its divisors is an integer number (1385446).

2^2770891 is an apocalyptic number.

2770891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2770891 is an equidigital number, since it uses as much as digits as its factorization.

2770891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 34.

The square root of 2770891 is about 1664.5993511954. The cubic root of 2770891 is about 140.4558440795.

The spelling of 2770891 in words is "two million, seven hundred seventy thousand, eight hundred ninety-one".