1097706539 has 2 divisors, whose sum is σ = 1097706540. Its totient is φ = 1097706538.

The previous prime is 1097706433. The next prime is 1097706553. The reversal of 1097706539 is 9356077901.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1097706539 - 2⁸ = 1097706283 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 1097706493 and 1097706502.

It is not a weakly prime, because it can be changed into another prime (1097702539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548853269 + 548853270.

It is an arithmetic number, because the mean of its divisors is an integer number (548853270).

Almost surely, 2^1097706539 is an apocalyptic number.

1097706539 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097706539 is an equidigital number, since it uses as much as digits as its factorization.

1097706539 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 357210, while the sum is 47.

The square root of 1097706539 is about 33131.6546372197. The cubic root of 1097706539 is about 1031.5621937973.

The spelling of 1097706539 in words is "one billion, ninety-seven million, seven hundred six thousand, five hundred thirty-nine".