172822922 has 8 divisors (see below), whose sum is σ = 259290372. Its totient is φ = 86392800.

The previous prime is 172822921. The next prime is 172822957. The reversal of 172822922 is 229228271.

172822922 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 167210761 + 5612161 = 12931^2 + 2369^2 .

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

It is not an unprimeable number, because it can be changed into a prime (172822921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11972 + ... + 22112.

Almost surely, 2^172822922 is an apocalyptic number.

172822922 is a deficient number, since it is larger than the sum of its proper divisors (86467450).

172822922 is a wasteful number, since it uses less digits than its factorization.

172822922 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18664.

The product of its digits is 16128, while the sum is 35.

The square root of 172822922 is about 13146.2132190224. The cubic root of 172822922 is about 557.0152873009.

The spelling of 172822922 in words is "one hundred seventy-two million, eight hundred twenty-two thousand, nine hundred twenty-two".