2764891 has 2 divisors, whose sum is σ = 2764892. Its totient is φ = 2764890.

The previous prime is 2764873. The next prime is 2764901. The reversal of 2764891 is 1984672.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2764891 is a prime.

It is a d-powerful number, because it can be written as 2¹¹ + 7⁶ + 6³ + 4⁷ + 8⁷ + 9⁶ + 1 .

It is a self number, because there is not a number n which added to its sum of digits gives 2764891.

It is not a weakly prime, because it can be changed into another prime (2764841) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1382445 + 1382446.

It is an arithmetic number, because the mean of its divisors is an integer number (1382446).

2^2764891 is an apocalyptic number.

2764891 is a deficient number, since it is larger than the sum of its proper divisors (1).

2764891 is an equidigital number, since it uses as much as digits as its factorization.

2764891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 24192, while the sum is 37.

The square root of 2764891 is about 1662.7961390381. The cubic root of 2764891 is about 140.3543912646.

It can be divided in two parts, 2764 and 891, that added together give a triangular number (3655 = T₈₅).

The spelling of 2764891 in words is "two million, seven hundred sixty-four thousand, eight hundred ninety-one".