128827206 has 32 divisors (see below), whose sum is σ = 291690720. Its totient is φ = 42131232.

The previous prime is 128827199. The next prime is 128827211. The reversal of 128827206 is 602728821.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 19645 + ... + 25368.

It is an arithmetic number, because the mean of its divisors is an integer number (9115335).

Almost surely, 2^128827206 is an apocalyptic number.

128827206 is an abundant number, since it is smaller than the sum of its proper divisors (162863514).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

128827206 is a wasteful number, since it uses less digits than its factorization.

128827206 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45077 (or 45071 counting only the distinct ones).

The product of its (nonzero) digits is 21504, while the sum is 36.

The square root of 128827206 is about 11350.2073108820. The cubic root of 128827206 is about 505.0517294982.

The spelling of 128827206 in words is "one hundred twenty-eight million, eight hundred twenty-seven thousand, two hundred six".