206797693 has 2 divisors, whose sum is σ = 206797694. Its totient is φ = 206797692.

The previous prime is 206797687. The next prime is 206797733. The reversal of 206797693 is 396797602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 163277284 + 43520409 = 12778^2 + 6597^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206797693 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206797093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103398846 + 103398847.

It is an arithmetic number, because the mean of its divisors is an integer number (103398847).

Almost surely, 2^206797693 is an apocalyptic number.

It is an amenable number.

206797693 is a deficient number, since it is larger than the sum of its proper divisors (1).

206797693 is an equidigital number, since it uses as much as digits as its factorization.

206797693 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 49.

The square root of 206797693 is about 14380.4621970227. The cubic root of 206797693 is about 591.3553948592.

The spelling of 206797693 in words is "two hundred six million, seven hundred ninety-seven thousand, six hundred ninety-three".