208816964 has 12 divisors (see below), whose sum is σ = 370577088. Its totient is φ = 102937800.

The previous prime is 208816943. The next prime is 208816981. The reversal of 208816964 is 469618802.

It is a happy number.

208816964 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 367352 + ... + 367919.

It is an arithmetic number, because the mean of its divisors is an integer number (30881424).

Almost surely, 2^208816964 is an apocalyptic number.

It is an amenable number.

208816964 is a deficient number, since it is larger than the sum of its proper divisors (161760124).

208816964 is a wasteful number, since it uses less digits than its factorization.

208816964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 735346 (or 735344 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 44.

The square root of 208816964 is about 14450.5004757621. The cubic root of 208816964 is about 593.2739222871.

The spelling of 208816964 in words is "two hundred eight million, eight hundred sixteen thousand, nine hundred sixty-four".