117172829 has 8 divisors (see below), whose sum is σ = 124159680. Its totient is φ = 110268000.

The previous prime is 117172813. The next prime is 117172849. The reversal of 117172829 is 928271711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 117172829 - 2⁴ = 117172813 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 117172792 and 117172801.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117172849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 17552 + ... + 23289.

It is an arithmetic number, because the mean of its divisors is an integer number (15519960).

Almost surely, 2^117172829 is an apocalyptic number.

117172829 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

117172829 is a deficient number, since it is larger than the sum of its proper divisors (6986851).

117172829 is a wasteful number, since it uses less digits than its factorization.

117172829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41011.

The product of its digits is 14112, while the sum is 38.

The square root of 117172829 is about 10824.6399016318. The cubic root of 117172829 is about 489.3380329523.

The spelling of 117172829 in words is "one hundred seventeen million, one hundred seventy-two thousand, eight hundred twenty-nine".