206696493 has 6 divisors (see below), whose sum is σ = 298561614. Its totient is φ = 137797656.

The previous prime is 206696473. The next prime is 206696513. The reversal of 206696493 is 394696602.

It is an interprime number because it is at equal distance from previous prime (206696473) and next prime (206696513).

It can be written as a sum of positive squares in only one way, i.e., 189282564 + 17413929 = 13758^2 + 4173^2 .

It is not a de Polignac number, because 206696493 - 2⁶ = 206696429 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (206696473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11483130 + ... + 11483147.

It is an arithmetic number, because the mean of its divisors is an integer number (49760269).

Almost surely, 2^206696493 is an apocalyptic number.

It is an amenable number.

206696493 is a deficient number, since it is larger than the sum of its proper divisors (91865121).

206696493 is a wasteful number, since it uses less digits than its factorization.

206696493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22966283 (or 22966280 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 45.

The square root of 206696493 is about 14376.9431034556. The cubic root of 206696493 is about 591.2589158160.

The spelling of 206696493 in words is "two hundred six million, six hundred ninety-six thousand, four hundred ninety-three".