172094917 has 8 divisors (see below), whose sum is σ = 179282880. Its totient is φ = 165049440.

The previous prime is 172094891. The next prime is 172094929. The reversal of 172094917 is 719490271.

172094917 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 172094917 - 2⁷ = 172094789 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 172094917.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172094957) 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, 33153 + ... + 37990.

It is an arithmetic number, because the mean of its divisors is an integer number (22410360).

Almost surely, 2^172094917 is an apocalyptic number.

It is an amenable number.

172094917 is a deficient number, since it is larger than the sum of its proper divisors (7187963).

172094917 is an equidigital number, since it uses as much as digits as its factorization.

172094917 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71243.

The product of its (nonzero) digits is 31752, while the sum is 40.

The square root of 172094917 is about 13118.4952262064. The cubic root of 172094917 is about 556.2320566194.

The spelling of 172094917 in words is "one hundred seventy-two million, ninety-four thousand, nine hundred seventeen".