206205964 has 12 divisors (see below), whose sum is σ = 362001024. Its totient is φ = 102777104.

The previous prime is 206205913. The next prime is 206205973. The reversal of 206205964 is 469502602.

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, 80044 + ... + 82579.

It is an arithmetic number, because the mean of its divisors is an integer number (30166752).

Almost surely, 2^206205964 is an apocalyptic number.

It is an amenable number.

206205964 is a deficient number, since it is larger than the sum of its proper divisors (155795060).

206205964 is a wasteful number, since it uses less digits than its factorization.

206205964 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162944 (or 162942 counting only the distinct ones).

The product of its (nonzero) digits is 25920, while the sum is 34.

The square root of 206205964 is about 14359.8733977706. The cubic root of 206205964 is about 590.7908230828.

The spelling of 206205964 in words is "two hundred six million, two hundred five thousand, nine hundred sixty-four".