2208920986 has 4 divisors (see below), whose sum is σ = 3313381482. Its totient is φ = 1104460492.

The previous prime is 2208920983. The next prime is 2208921017. The reversal of 2208920986 is 6890298022.

It is a happy number.

2208920986 is digitally balanced in base 2, 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 can be written as a sum of positive squares in only one way, i.e., 2067429961 + 141491025 = 45469^2 + 11895^2 .

It is not an unprimeable number, because it can be changed into a prime (2208920983) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 552230245 + ... + 552230248.

Almost surely, 2^2208920986 is an apocalyptic number.

2208920986 is a deficient number, since it is larger than the sum of its proper divisors (1104460496).

2208920986 is a wasteful number, since it uses less digits than its factorization.

2208920986 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104460495.

The product of its (nonzero) digits is 248832, while the sum is 46.

The square root of 2208920986 is about 46999.1594180151. The cubic root of 2208920986 is about 1302.3470393601.

The spelling of 2208920986 in words is "two billion, two hundred eight million, nine hundred twenty thousand, nine hundred eighty-six".