117772017 has 16 divisors (see below), whose sum is σ = 171494400. Its totient is φ = 71298000.

The previous prime is 117772003. The next prime is 117772021. The reversal of 117772017 is 710277711.

It is a happy number.

It is not a de Polignac number, because 117772017 - 2⁴ = 117772001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (117772037) 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 15 ways as a sum of consecutive naturals, for example, 44892 + ... + 47442.

It is an arithmetic number, because the mean of its divisors is an integer number (10718400).

Almost surely, 2^117772017 is an apocalyptic number.

It is an amenable number.

117772017 is a deficient number, since it is larger than the sum of its proper divisors (53722383).

117772017 is a wasteful number, since it uses less digits than its factorization.

117772017 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3964.

The product of its (nonzero) digits is 4802, while the sum is 33.

The square root of 117772017 is about 10852.2816494966. The cubic root of 117772017 is about 490.1707262922.

The spelling of 117772017 in words is "one hundred seventeen million, seven hundred seventy-two thousand, seventeen".