2847749 has 2 divisors, whose sum is σ = 2847750. Its totient is φ = 2847748.

The previous prime is 2847731. The next prime is 2847763. The reversal of 2847749 is 9477482.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1677025 + 1170724 = 1295^2 + 1082^2 .

It is a cyclic number.

It is not a de Polignac number, because 2847749 - 2²⁰ = 1799173 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2847769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1423874 + 1423875.

It is an arithmetic number, because the mean of its divisors is an integer number (1423875).

2^2847749 is an apocalyptic number.

It is an amenable number.

2847749 is a deficient number, since it is larger than the sum of its proper divisors (1).

2847749 is an equidigital number, since it uses as much as digits as its factorization.

2847749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 112896, while the sum is 41.

The square root of 2847749 is about 1687.5274812577. The cubic root of 2847749 is about 141.7426569630.

The spelling of 2847749 in words is "two million, eight hundred forty-seven thousand, seven hundred forty-nine".