2743381 has 2 divisors, whose sum is σ = 2743382. Its totient is φ = 2743380.

The previous prime is 2743297. The next prime is 2743387. The reversal of 2743381 is 1833472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2739025 + 4356 = 1655^2 + 66^2 .

It is a cyclic number.

It is not a de Polignac number, because 2743381 - 2¹³ = 2735189 is a prime.

It is a super-2 number, since 2×2743381² = 15052278622322, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2743387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1371690 + 1371691.

It is an arithmetic number, because the mean of its divisors is an integer number (1371691).

2^2743381 is an apocalyptic number.

It is an amenable number.

2743381 is a deficient number, since it is larger than the sum of its proper divisors (1).

2743381 is an equidigital number, since it uses as much as digits as its factorization.

2743381 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4032, while the sum is 28.

The square root of 2743381 is about 1656.3154892713. The cubic root of 2743381 is about 139.9894719974.

Subtracting from 2743381 its reverse (1833472), we obtain a palindrome (909909).

It can be divided in two parts, 274 and 3381, that added together give a triangular number (3655 = T₈₅).

The spelling of 2743381 in words is "two million, seven hundred forty-three thousand, three hundred eighty-one".