2249798897 has 2 divisors, whose sum is σ = 2249798898. Its totient is φ = 2249798896.

The previous prime is 2249798869. The next prime is 2249798923. The reversal of 2249798897 is 7988979422.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1969939456 + 279859441 = 44384^2 + 16729^2 .

It is a cyclic number.

It is not a de Polignac number, because 2249798897 - 2¹² = 2249794801 is a prime.

It is not a weakly prime, because it can be changed into another prime (2249798807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1124899448 + 1124899449.

It is an arithmetic number, because the mean of its divisors is an integer number (1124899449).

Almost surely, 2^2249798897 is an apocalyptic number.

It is an amenable number.

2249798897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2249798897 is an equidigital number, since it uses as much as digits as its factorization.

2249798897 is an evil number, because the sum of its binary digits is even.

The product of its digits is 36578304, while the sum is 65.

The square root of 2249798897 is about 47432.0450434092. The cubic root of 2249798897 is about 1310.3316560186.

The spelling of 2249798897 in words is "two billion, two hundred forty-nine million, seven hundred ninety-eight thousand, eight hundred ninety-seven".