717998093 has 2 divisors, whose sum is σ = 717998094. Its totient is φ = 717998092.

The previous prime is 717998069. The next prime is 717998101. The reversal of 717998093 is 390899717.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 704477764 + 13520329 = 26542^2 + 3677^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-717998093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (717998003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 358999046 + 358999047.

It is an arithmetic number, because the mean of its divisors is an integer number (358999047).

Almost surely, 2^717998093 is an apocalyptic number.

It is an amenable number.

717998093 is a deficient number, since it is larger than the sum of its proper divisors (1).

717998093 is an equidigital number, since it uses as much as digits as its factorization.

717998093 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 857304, while the sum is 53.

The square root of 717998093 is about 26795.4864296209. The cubic root of 717998093 is about 895.4494971697.

The spelling of 717998093 in words is "seven hundred seventeen million, nine hundred ninety-eight thousand, ninety-three".