206934493 has 2 divisors, whose sum is σ = 206934494. Its totient is φ = 206934492.

The previous prime is 206934479. The next prime is 206934547. The reversal of 206934493 is 394439602.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 202151524 + 4782969 = 14218^2 + 2187^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-206934493 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (206934193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 103467246 + 103467247.

It is an arithmetic number, because the mean of its divisors is an integer number (103467247).

Almost surely, 2^206934493 is an apocalyptic number.

It is an amenable number.

206934493 is a deficient number, since it is larger than the sum of its proper divisors (1).

206934493 is an equidigital number, since it uses as much as digits as its factorization.

206934493 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 139968, while the sum is 40.

The square root of 206934493 is about 14385.2178641827. The cubic root of 206934493 is about 591.4857631515.

The spelling of 206934493 in words is "two hundred six million, nine hundred thirty-four thousand, four hundred ninety-three".