208688492 has 6 divisors (see below), whose sum is σ = 365204868. Its totient is φ = 104344244.

The previous prime is 208688471. The next prime is 208688521. The reversal of 208688492 is 294886802.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26086058 + ... + 26086065.

It is an arithmetic number, because the mean of its divisors is an integer number (60867478).

Almost surely, 2^208688492 is an apocalyptic number.

It is an amenable number.

208688492 is a deficient number, since it is larger than the sum of its proper divisors (156516376).

208688492 is a wasteful number, since it uses less digits than its factorization.

208688492 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52172127 (or 52172125 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 47.

The square root of 208688492 is about 14446.0545478688. The cubic root of 208688492 is about 593.1522292308.

The spelling of 208688492 in words is "two hundred eight million, six hundred eighty-eight thousand, four hundred ninety-two".