2749228247 has 2 divisors, whose sum is σ = 2749228248. Its totient is φ = 2749228246.

The previous prime is 2749228213. The next prime is 2749228259. The reversal of 2749228247 is 7428229472.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2749228247 - 2¹⁴ = 2749211863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2749228267) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1374614123 + 1374614124.

It is an arithmetic number, because the mean of its divisors is an integer number (1374614124).

Almost surely, 2^2749228247 is an apocalyptic number.

2749228247 is a deficient number, since it is larger than the sum of its proper divisors (1).

2749228247 is an equidigital number, since it uses as much as digits as its factorization.

2749228247 is an evil number, because the sum of its binary digits is even.

The product of its digits is 903168, while the sum is 47.

The square root of 2749228247 is about 52433.0835160398. The cubic root of 2749228247 is about 1400.8885935348. Note that the first 3 decimals are identical.

The spelling of 2749228247 in words is "two billion, seven hundred forty-nine million, two hundred twenty-eight thousand, two hundred forty-seven".