117000721 has 8 divisors (see below), whose sum is σ = 120960224. Its totient is φ = 113097600.

The previous prime is 117000661. The next prime is 117000731. The reversal of 117000721 is 127000711.

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 117000721 - 2⁹ = 117000209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (117000731) by changing a digit.

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, 9855 + ... + 18196.

It is an arithmetic number, because the mean of its divisors is an integer number (15120028).

Almost surely, 2^117000721 is an apocalyptic number.

It is an amenable number.

117000721 is a deficient number, since it is larger than the sum of its proper divisors (3959503).

117000721 is an equidigital number, since it uses as much as digits as its factorization.

117000721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28191.

The product of its (nonzero) digits is 98, while the sum is 19.

The square root of 117000721 is about 10816.6871545774. The cubic root of 117000721 is about 489.0983293188.

The spelling of 117000721 in words is "one hundred seventeen million, seven hundred twenty-one", and thus it is an aban number.