1097816723 has 2 divisors, whose sum is σ = 1097816724. Its totient is φ = 1097816722.

The previous prime is 1097816711. The next prime is 1097816761. The reversal of 1097816723 is 3276187901.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1097816723 - 2²² = 1093622419 is a prime.

It is not a weakly prime, because it can be changed into another prime (1097816323) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 548908361 + 548908362.

It is an arithmetic number, because the mean of its divisors is an integer number (548908362).

Almost surely, 2^1097816723 is an apocalyptic number.

1097816723 is a deficient number, since it is larger than the sum of its proper divisors (1).

1097816723 is an equidigital number, since it uses as much as digits as its factorization.

1097816723 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 44.

The square root of 1097816723 is about 33133.3174161598. The cubic root of 1097816723 is about 1031.5967075287.

The spelling of 1097816723 in words is "one billion, ninety-seven million, eight hundred sixteen thousand, seven hundred twenty-three".