2766493 has 2 divisors, whose sum is σ = 2766494. Its totient is φ = 2766492.

The previous prime is 2766487. The next prime is 2766521. The reversal of 2766493 is 3946672.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1923769 + 842724 = 1387^2 + 918^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2766493 is a prime.

It is a d-powerful number, because it can be written as 2¹⁵ + 7⁴ + 6³ + 6⁸ + 4¹⁰ + 9³ + 3⁷ .

2766493 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2766193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1383246 + 1383247.

It is an arithmetic number, because the mean of its divisors is an integer number (1383247).

2^2766493 is an apocalyptic number.

It is an amenable number.

2766493 is a deficient number, since it is larger than the sum of its proper divisors (1).

2766493 is an equidigital number, since it uses as much as digits as its factorization.

2766493 is an evil number, because the sum of its binary digits is even.

The product of its digits is 54432, while the sum is 37.

The square root of 2766493 is about 1663.2777879837. The cubic root of 2766493 is about 140.3814935172.

It can be divided in two parts, 27664 and 93, that multiplied together give a palindrome (2572752).

The spelling of 2766493 in words is "two million, seven hundred sixty-six thousand, four hundred ninety-three".