117728210 has 16 divisors (see below), whose sum is σ = 213460056. Its totient is φ = 46747008.

The previous prime is 117728203. The next prime is 117728239. The reversal of 117728210 is 12827711.

It can be written as a sum of positive squares in 4 ways, for example, as 103897249 + 13830961 = 10193^2 + 3719^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 41597 + ... + 44336.

Almost surely, 2^117728210 is an apocalyptic number.

117728210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117728210 is a deficient number, since it is larger than the sum of its proper divisors (95731846).

117728210 is a wasteful number, since it uses less digits than its factorization.

117728210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86077.

The product of its (nonzero) digits is 1568, while the sum is 29.

The square root of 117728210 is about 10850.2631304499. The cubic root of 117728210 is about 490.1099433985.

The spelling of 117728210 in words is "one hundred seventeen million, seven hundred twenty-eight thousand, two hundred ten".