206681098 has 8 divisors (see below), whose sum is σ = 333869508. Its totient is φ = 95391264.

The previous prime is 206681081. The next prime is 206681119. The reversal of 206681098 is 890186602.

It can be written as a sum of positive squares in 2 ways, for example, as 206583129 + 97969 = 14373^2 + 313^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 206681098.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3974611 + ... + 3974662.

Almost surely, 2^206681098 is an apocalyptic number.

206681098 is a deficient number, since it is larger than the sum of its proper divisors (127188410).

206681098 is a wasteful number, since it uses less digits than its factorization.

206681098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7949288.

The product of its (nonzero) digits is 41472, while the sum is 40.

The square root of 206681098 is about 14376.4076875971. The cubic root of 206681098 is about 591.2442362297.

The spelling of 206681098 in words is "two hundred six million, six hundred eighty-one thousand, ninety-eight".