172207873 has 8 divisors (see below), whose sum is σ = 175153536. Its totient is φ = 169276800.

The previous prime is 172207817. The next prime is 172207897. The reversal of 172207873 is 378702271.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-172207873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (172202873) 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, 21628 + ... + 28498.

It is an arithmetic number, because the mean of its divisors is an integer number (21894192).

Almost surely, 2^172207873 is an apocalyptic number.

It is an amenable number.

172207873 is a deficient number, since it is larger than the sum of its proper divisors (2945663).

172207873 is an equidigital number, since it uses as much as digits as its factorization.

172207873 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7295.

The product of its (nonzero) digits is 32928, while the sum is 37.

The square root of 172207873 is about 13122.7997393849. The cubic root of 172207873 is about 556.3537259245.

The spelling of 172207873 in words is "one hundred seventy-two million, two hundred seven thousand, eight hundred seventy-three".