2783849 has 2 divisors, whose sum is σ = 2783850. Its totient is φ = 2783848.

The previous prime is 2783821. The next prime is 2783873. The reversal of 2783849 is 9483872.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2689600 + 94249 = 1640^2 + 307^2 .

It is a cyclic number.

It is not a de Polignac number, because 2783849 - 2⁸ = 2783593 is a prime.

It is not a weakly prime, because it can be changed into another prime (2783549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1391924 + 1391925.

It is an arithmetic number, because the mean of its divisors is an integer number (1391925).

2^2783849 is an apocalyptic number.

It is an amenable number.

2783849 is a deficient number, since it is larger than the sum of its proper divisors (1).

2783849 is an equidigital number, since it uses as much as digits as its factorization.

2783849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 96768, while the sum is 41.

The square root of 2783849 is about 1668.4870392065. The cubic root of 2783849 is about 140.6744497040.

The spelling of 2783849 in words is "two million, seven hundred eighty-three thousand, eight hundred forty-nine".