172448829 has 24 divisors (see below), whose sum is σ = 291625152. Its totient is φ = 96137280.

The previous prime is 172448813. The next prime is 172448869. The reversal of 172448829 is 928844271.

It is not a de Polignac number, because 172448829 - 2⁴ = 172448813 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172448869) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 30799 + ... + 35964.

It is an arithmetic number, because the mean of its divisors is an integer number (12151048).

Almost surely, 2^172448829 is an apocalyptic number.

It is an amenable number.

172448829 is a deficient number, since it is larger than the sum of its proper divisors (119176323).

172448829 is a wasteful number, since it uses less digits than its factorization.

172448829 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66817 (or 66814 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 172448829 is about 13131.9773453962. The cubic root of 172448829 is about 556.6130913256.

The spelling of 172448829 in words is "one hundred seventy-two million, four hundred forty-eight thousand, eight hundred twenty-nine".