172733197 has 16 divisors (see below), whose sum is σ = 221840640. Its totient is φ = 130724352.

The previous prime is 172733189. The next prime is 172733221. The reversal of 172733197 is 791337271.

172733197 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 172733197 - 2³ = 172733189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172733177) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 39172 + ... + 43357.

It is an arithmetic number, because the mean of its divisors is an integer number (13865040).

Almost surely, 2^172733197 is an apocalyptic number.

It is an amenable number.

172733197 is a deficient number, since it is larger than the sum of its proper divisors (49107443).

172733197 is a wasteful number, since it uses less digits than its factorization.

172733197 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82572.

The product of its digits is 55566, while the sum is 40.

The square root of 172733197 is about 13142.8001963052. The cubic root of 172733197 is about 556.9188748427.

The spelling of 172733197 in words is "one hundred seventy-two million, seven hundred thirty-three thousand, one hundred ninety-seven".