206868674 has 4 divisors (see below), whose sum is σ = 310303014. Its totient is φ = 103434336.

The previous prime is 206868671. The next prime is 206868709. The reversal of 206868674 is 476868602.

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

It can be written as a sum of positive squares in only one way, i.e., 123054649 + 83814025 = 11093^2 + 9155^2 .

It is not an unprimeable number, because it can be changed into a prime (206868671) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51717167 + ... + 51717170.

Almost surely, 2^206868674 is an apocalyptic number.

206868674 is a deficient number, since it is larger than the sum of its proper divisors (103434340).

206868674 is a wasteful number, since it uses less digits than its factorization.

206868674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103434339.

The product of its (nonzero) digits is 774144, while the sum is 47.

The square root of 206868674 is about 14382.9299518561. The cubic root of 206868674 is about 591.4230458326.

The spelling of 206868674 in words is "two hundred six million, eight hundred sixty-eight thousand, six hundred seventy-four".