117072989 has 8 divisors (see below), whose sum is σ = 127852032. Its totient is φ = 106316640.

The previous prime is 117072983. The next prime is 117073007. The reversal of 117072989 is 989270711.

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 117072989 - 2⁴ = 117072973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (117072983) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6212 + ... + 16514.

It is an arithmetic number, because the mean of its divisors is an integer number (15981504).

Almost surely, 2^117072989 is an apocalyptic number.

It is an amenable number.

117072989 is a deficient number, since it is larger than the sum of its proper divisors (10779043).

117072989 is a wasteful number, since it uses less digits than its factorization.

117072989 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11347.

The product of its (nonzero) digits is 63504, while the sum is 44.

The square root of 117072989 is about 10820.0272180804. The cubic root of 117072989 is about 489.1990092771.

The spelling of 117072989 in words is "one hundred seventeen million, seventy-two thousand, nine hundred eighty-nine".