1117928797 has 2 divisors, whose sum is σ = 1117928798. Its totient is φ = 1117928796.

The previous prime is 1117928771. The next prime is 1117928827. The reversal of 1117928797 is 7978297111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 693321561 + 424607236 = 26331^2 + 20606^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1117928797 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1117928737) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 558964398 + 558964399.

It is an arithmetic number, because the mean of its divisors is an integer number (558964399).

Almost surely, 2^1117928797 is an apocalyptic number.

It is an amenable number.

1117928797 is a deficient number, since it is larger than the sum of its proper divisors (1).

1117928797 is an equidigital number, since it uses as much as digits as its factorization.

1117928797 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 444528, while the sum is 52.

The square root of 1117928797 is about 33435.4422282703. The cubic root of 1117928797 is about 1037.8582640785.

The spelling of 1117928797 in words is "one billion, one hundred seventeen million, nine hundred twenty-eight thousand, seven hundred ninety-seven".