208812345 has 16 divisors (see below), whose sum is σ = 381828480. Its totient is φ = 95457024.

The previous prime is 208812341. The next prime is 208812347. The reversal of 208812345 is 543218802.

208812345 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 208812345 - 2² = 208812341 is a prime.

It is not an unprimeable number, because it can be changed into a prime (208812341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 994240 + ... + 994449.

It is an arithmetic number, because the mean of its divisors is an integer number (23864280).

Almost surely, 2^208812345 is an apocalyptic number.

It is an amenable number.

208812345 is a deficient number, since it is larger than the sum of its proper divisors (173016135).

208812345 is a wasteful number, since it uses less digits than its factorization.

208812345 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1988704.

The product of its (nonzero) digits is 15360, while the sum is 33.

The square root of 208812345 is about 14450.3406534241. The cubic root of 208812345 is about 593.2695478780.

The spelling of 208812345 in words is "two hundred eight million, eight hundred twelve thousand, three hundred forty-five".