208993075 has 6 divisors (see below), whose sum is σ = 259151444. Its totient is φ = 167194440.

The previous prime is 208993063. The next prime is 208993117. The reversal of 208993075 is 570399802.

It is a happy number.

It is not a de Polignac number, because 208993075 - 2⁷ = 208992947 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 4179837 + ... + 4179886.

Almost surely, 2^208993075 is an apocalyptic number.

208993075 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

208993075 is a deficient number, since it is larger than the sum of its proper divisors (50158369).

208993075 is an equidigital number, since it uses as much as digits as its factorization.

208993075 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8359733 (or 8359728 counting only the distinct ones).

The product of its (nonzero) digits is 136080, while the sum is 43.

The square root of 208993075 is about 14456.5927866839. The cubic root of 208993075 is about 593.4406595466.

The spelling of 208993075 in words is "two hundred eight million, nine hundred ninety-three thousand, seventy-five".