209068929 has 12 divisors (see below), whose sum is σ = 311730432. Its totient is φ = 134883000.

The previous prime is 209068901. The next prime is 209068933. The reversal of 209068929 is 929860902.

It is not a de Polignac number, because 209068929 - 2⁵ = 209068897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (209068999) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 374397 + ... + 374954.

It is an arithmetic number, because the mean of its divisors is an integer number (25977536).

Almost surely, 2^209068929 is an apocalyptic number.

It is an amenable number.

209068929 is a deficient number, since it is larger than the sum of its proper divisors (102661503).

209068929 is a wasteful number, since it uses less digits than its factorization.

209068929 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 749388 (or 749385 counting only the distinct ones).

The product of its (nonzero) digits is 139968, while the sum is 45.

The square root of 209068929 is about 14459.2160575876. The cubic root of 209068929 is about 593.5124472567.

The spelling of 209068929 in words is "two hundred nine million, sixty-eight thousand, nine hundred twenty-nine".