2747389 has 2 divisors, whose sum is σ = 2747390. Its totient is φ = 2747388.

The previous prime is 2747363. The next prime is 2747401. The reversal of 2747389 is 9837472.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1876900 + 870489 = 1370^2 + 933^2 .

It is a cyclic number.

It is not a de Polignac number, because 2747389 - 2⁵ = 2747357 is a prime.

2747389 is a lucky number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2747309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1373694 + 1373695.

It is an arithmetic number, because the mean of its divisors is an integer number (1373695).

2^2747389 is an apocalyptic number.

It is an amenable number.

2747389 is a deficient number, since it is larger than the sum of its proper divisors (1).

2747389 is an equidigital number, since it uses as much as digits as its factorization.

2747389 is an evil number, because the sum of its binary digits is even.

The product of its digits is 84672, while the sum is 40.

The square root of 2747389 is about 1657.5249621046. The cubic root of 2747389 is about 140.0576123427.

It can be divided in two parts, 2747 and 389, that added together give a square (3136 = 56²).

The spelling of 2747389 in words is "two million, seven hundred forty-seven thousand, three hundred eighty-nine".