2764789 has 2 divisors, whose sum is σ = 2764790. Its totient is φ = 2764788.

The previous prime is 2764787. The next prime is 2764819. The reversal of 2764789 is 9874672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2007889 + 756900 = 1417^2 + 870^2 .

It is a cyclic number.

It is not a de Polignac number, because 2764789 - 2¹ = 2764787 is a prime.

Together with 2764787, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2764787) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1382394 + 1382395.

It is an arithmetic number, because the mean of its divisors is an integer number (1382395).

2^2764789 is an apocalyptic number.

It is an amenable number.

2764789 is a deficient number, since it is larger than the sum of its proper divisors (1).

2764789 is an equidigital number, since it uses as much as digits as its factorization.

2764789 is an evil number, because the sum of its binary digits is even.

The product of its digits is 169344, while the sum is 43.

The square root of 2764789 is about 1662.7654675269. The cubic root of 2764789 is about 140.3526652986.

It can be divided in two parts, 2764 and 789, that added together give a palindrome (3553).

The spelling of 2764789 in words is "two million, seven hundred sixty-four thousand, seven hundred eighty-nine".