1097599697 has 2 divisors, whose sum is σ = 1097599698. Its totient is φ = 1097599696.

The previous prime is 1097599681. The next prime is 1097599751. The reversal of 1097599697 is 7969957901.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1025536576 + 72063121 = 32024^2 + 8489^2 .

It is a cyclic number.

It is not a de Polignac number, because 1097599697 - 2⁴ = 1097599681 is a prime.

It is not a weakly prime, because it can be changed into another prime (1097599637) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548799848 + 548799849.

It is an arithmetic number, because the mean of its divisors is an integer number (548799849).

Almost surely, 2^1097599697 is an apocalyptic number.

It is an amenable number.

1097599697 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097599697 is an equidigital number, since it uses as much as digits as its factorization.

1097599697 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9644670, while the sum is 62.

The square root of 1097599697 is about 33130.0422124693. The cubic root of 1097599697 is about 1031.5287246991.

The spelling of 1097599697 in words is "one billion, ninety-seven million, five hundred ninety-nine thousand, six hundred ninety-seven".