172225676 has 36 divisors (see below), whose sum is σ = 354091248. Its totient is φ = 71800128.

The previous prime is 172225667. The next prime is 172225681. The reversal of 172225676 is 676522271.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36086 + ... + 40578.

It is an arithmetic number, because the mean of its divisors is an integer number (9835868).

Almost surely, 2^172225676 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 172225676, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (177045624).

172225676 is an abundant number, since it is smaller than the sum of its proper divisors (181865572).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

172225676 is a wasteful number, since it uses less digits than its factorization.

172225676 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4578 (or 4539 counting only the distinct ones).

The product of its digits is 70560, while the sum is 38.

The square root of 172225676 is about 13123.4780450916. The cubic root of 172225676 is about 556.3728973749.

It can be divided in two parts, 172225 and 676, that multiplied together give a square (116424100 = 10790²).

The spelling of 172225676 in words is "one hundred seventy-two million, two hundred twenty-five thousand, six hundred seventy-six".