206949898 has 4 divisors (see below), whose sum is σ = 310424850. Its totient is φ = 103474948.

The previous prime is 206949811. The next prime is 206949931. The reversal of 206949898 is 898949602.

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., 202123089 + 4826809 = 14217^2 + 2197^2 .

It is an unprimeable number.

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, 51737473 + ... + 51737476.

Almost surely, 2^206949898 is an apocalyptic number.

206949898 is a deficient number, since it is larger than the sum of its proper divisors (103474952).

206949898 is a wasteful number, since it uses less digits than its factorization.

206949898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 103474951.

The product of its (nonzero) digits is 2239488, while the sum is 55.

The square root of 206949898 is about 14385.7532997059. The cubic root of 206949898 is about 591.5004402794.

The spelling of 206949898 in words is "two hundred six million, nine hundred forty-nine thousand, eight hundred ninety-eight".