206786494 has 4 divisors (see below), whose sum is σ = 310179744. Its totient is φ = 103393246.

The previous prime is 206786483. The next prime is 206786507. The reversal of 206786494 is 494687602.

It is a happy number.

206786494 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51696622 + ... + 51696625.

It is an arithmetic number, because the mean of its divisors is an integer number (77544936).

Almost surely, 2^206786494 is an apocalyptic number.

206786494 is a deficient number, since it is larger than the sum of its proper divisors (103393250).

206786494 is a wasteful number, since it uses less digits than its factorization.

206786494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103393249.

The product of its (nonzero) digits is 580608, while the sum is 46.

The square root of 206786494 is about 14380.0728092733. The cubic root of 206786494 is about 591.3447198391.

It can be divided in two parts, 20678 and 6494, that added together give a palindrome (27172).

The spelling of 206786494 in words is "two hundred six million, seven hundred eighty-six thousand, four hundred ninety-four".