2772943 has 4 divisors (see below), whose sum is σ = 2779000. Its totient is φ = 2766888.

The previous prime is 2772923. The next prime is 2772967. The reversal of 2772943 is 3492772.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2772943 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2772899 and 2772908.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2772923) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2280 + ... + 3277.

It is an arithmetic number, because the mean of its divisors is an integer number (694750).

2^2772943 is an apocalyptic number.

2772943 is a deficient number, since it is larger than the sum of its proper divisors (6057).

2772943 is an equidigital number, since it uses as much as digits as its factorization.

2772943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6056.

The product of its digits is 21168, while the sum is 34.

The square root of 2772943 is about 1665.2156016564. The cubic root of 2772943 is about 140.4905073309.

It can be divided in two parts, 27729 and 43, that added together give a palindrome (27772).

The spelling of 2772943 in words is "two million, seven hundred seventy-two thousand, nine hundred forty-three".