208248649 has 8 divisors (see below), whose sum is σ = 238683200. Its totient is φ = 177985296.

The previous prime is 208248641. The next prime is 208248653. The reversal of 208248649 is 946842802.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 208248649 - 2³ = 208248641 is a prime.

It is not an unprimeable number, because it can be changed into a prime (208248641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 40179 + ... + 45064.

It is an arithmetic number, because the mean of its divisors is an integer number (29835400).

Almost surely, 2^208248649 is an apocalyptic number.

It is an amenable number.

208248649 is a deficient number, since it is larger than the sum of its proper divisors (30434551).

208248649 is an equidigital number, since it uses as much as digits as its factorization.

208248649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85599.

The product of its (nonzero) digits is 221184, while the sum is 43.

The square root of 208248649 is about 14430.8228802103. The cubic root of 208248649 is about 592.7352163589.

The spelling of 208248649 in words is "two hundred eight million, two hundred forty-eight thousand, six hundred forty-nine".