1096847909 has 2 divisors, whose sum is σ = 1096847910. Its totient is φ = 1096847908.

The previous prime is 1096847887. The next prime is 1096847933. The reversal of 1096847909 is 9097486901.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 691953025 + 404894884 = 26305^2 + 20122^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1096847909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1096847959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548423954 + 548423955.

It is an arithmetic number, because the mean of its divisors is an integer number (548423955).

Almost surely, 2^1096847909 is an apocalyptic number.

It is an amenable number.

1096847909 is a deficient number, since it is larger than the sum of its proper divisors (1).

1096847909 is an equidigital number, since it uses as much as digits as its factorization.

1096847909 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 979776, while the sum is 53.

The square root of 1096847909 is about 33118.6942526423. The cubic root of 1096847909 is about 1031.2931597535.

The spelling of 1096847909 in words is "one billion, ninety-six million, eight hundred forty-seven thousand, nine hundred nine".