208969064 has 8 divisors (see below), whose sum is σ = 391817010. Its totient is φ = 104484528.

The previous prime is 208969039. The next prime is 208969069. The reversal of 208969064 is 460969802.

208969064 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 205692964 + 3276100 = 14342^2 + 1810^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (208969069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13060559 + ... + 13060574.

Almost surely, 2^208969064 is an apocalyptic number.

It is an amenable number.

208969064 is a deficient number, since it is larger than the sum of its proper divisors (182847946).

208969064 is a wasteful number, since it uses less digits than its factorization.

208969064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26121139 (or 26121135 counting only the distinct ones).

The product of its (nonzero) digits is 186624, while the sum is 44.

The square root of 208969064 is about 14455.7623112723. The cubic root of 208969064 is about 593.4179320800.

The spelling of 208969064 in words is "two hundred eight million, nine hundred sixty-nine thousand, sixty-four".