208870988 has 6 divisors (see below), whose sum is σ = 365524236. Its totient is φ = 104435492.

The previous prime is 208870979. The next prime is 208871011. The reversal of 208870988 is 889078802.

208870988 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×208870988² = 87254179256192288, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26108870 + ... + 26108877.

It is an arithmetic number, because the mean of its divisors is an integer number (60920706).

Almost surely, 2^208870988 is an apocalyptic number.

It is an amenable number.

208870988 is a deficient number, since it is larger than the sum of its proper divisors (156653248).

208870988 is a wasteful number, since it uses less digits than its factorization.

208870988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52217751 (or 52217749 counting only the distinct ones).

The product of its (nonzero) digits is 516096, while the sum is 50.

The square root of 208870988 is about 14452.3696326935. The cubic root of 208870988 is about 593.3250807532.

The spelling of 208870988 in words is "two hundred eight million, eight hundred seventy thousand, nine hundred eighty-eight".