117729770 has 16 divisors (see below), whose sum is σ = 212268168. Its totient is φ = 47013120.

The previous prime is 117729767. The next prime is 117729791. The reversal of 117729770 is 77927711.

It can be written as a sum of positive squares in 4 ways, for example, as 39601849 + 78127921 = 6293^2 + 8839^2 .

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 in 7 ways as a sum of consecutive naturals, for example, 3371 + ... + 15710.

Almost surely, 2^117729770 is an apocalyptic number.

117729770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

117729770 is a deficient number, since it is larger than the sum of its proper divisors (94538398).

117729770 is a wasteful number, since it uses less digits than its factorization.

117729770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19705.

The product of its (nonzero) digits is 43218, while the sum is 41.

The square root of 117729770 is about 10850.3350178693. The cubic root of 117729770 is about 490.1121081817.

The spelling of 117729770 in words is "one hundred seventeen million, seven hundred twenty-nine thousand, seven hundred seventy".