172082886 has 32 divisors (see below), whose sum is σ = 369999360. Its totient is φ = 53184096.

The previous prime is 172082851. The next prime is 172082887. The reversal of 172082886 is 688280271.

It is a super-2 number, since 2×172082886² = 59225039308177992, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (172082887) 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, 10701 + ... + 21416.

It is an arithmetic number, because the mean of its divisors is an integer number (11562480).

Almost surely, 2^172082886 is an apocalyptic number.

172082886 is an abundant number, since it is smaller than the sum of its proper divisors (197916474).

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

172082886 is a wasteful number, since it uses less digits than its factorization.

172082886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32188.

The product of its (nonzero) digits is 86016, while the sum is 42.

The square root of 172082886 is about 13118.0366671236. The cubic root of 172082886 is about 556.2190944240.

The spelling of 172082886 in words is "one hundred seventy-two million, eighty-two thousand, eight hundred eighty-six".