206690476 has 6 divisors (see below), whose sum is σ = 361708340. Its totient is φ = 103345236.

The previous prime is 206690467. The next prime is 206690479. The reversal of 206690476 is 674096602.

It is not an unprimeable number, because it can be changed into a prime (206690479) 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 as a sum of consecutive naturals, namely, 25836306 + ... + 25836313.

Almost surely, 2^206690476 is an apocalyptic number.

It is an amenable number.

206690476 is a deficient number, since it is larger than the sum of its proper divisors (155017864).

206690476 is a wasteful number, since it uses less digits than its factorization.

206690476 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51672623 (or 51672621 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 40.

The square root of 206690476 is about 14376.7338432622. The cubic root of 206690476 is about 591.2531785159.

The spelling of 206690476 in words is "two hundred six million, six hundred ninety thousand, four hundred seventy-six".