117072747 has 24 divisors (see below), whose sum is σ = 184923648. Its totient is φ = 70782000.

The previous prime is 117072743. The next prime is 117072757. The reversal of 117072747 is 747270711.

It is not a de Polignac number, because 117072747 - 2² = 117072743 is a prime.

It is not an unprimeable number, because it can be changed into a prime (117072743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 48622 + ... + 50972.

It is an arithmetic number, because the mean of its divisors is an integer number (7705152).

Almost surely, 2^117072747 is an apocalyptic number.

117072747 is a deficient number, since it is larger than the sum of its proper divisors (67850901).

117072747 is a wasteful number, since it uses less digits than its factorization.

117072747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2871 (or 2868 counting only the distinct ones).

The product of its (nonzero) digits is 19208, while the sum is 36.

The square root of 117072747 is about 10820.0160351083. The cubic root of 117072747 is about 489.1986722046.

The spelling of 117072747 in words is "one hundred seventeen million, seventy-two thousand, seven hundred forty-seven".