1097787247 has 2 divisors, whose sum is σ = 1097787248. Its totient is φ = 1097787246.

The previous prime is 1097787227. The next prime is 1097787253. The reversal of 1097787247 is 7427877901.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1097787247 - 2¹⁵ = 1097754479 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1097787194 and 1097787203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1097787227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548893623 + 548893624.

It is an arithmetic number, because the mean of its divisors is an integer number (548893624).

Almost surely, 2^1097787247 is an apocalyptic number.

1097787247 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097787247 is an equidigital number, since it uses as much as digits as its factorization.

1097787247 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1382976, while the sum is 52.

The square root of 1097787247 is about 33132.8726041072. The cubic root of 1097787247 is about 1031.5874747743.

The spelling of 1097787247 in words is "one billion, ninety-seven million, seven hundred eighty-seven thousand, two hundred forty-seven".