82454172 has 72 divisors (see below), whose sum is σ = 208104960. Its totient is φ = 25380960.

The previous prime is 82454161. The next prime is 82454209. The reversal of 82454172 is 27145428.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 196579 + ... + 196997.

Almost surely, 2^82454172 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 82454172, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104052480).

82454172 is an abundant number, since it is smaller than the sum of its proper divisors (125650788).

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

82454172 is a wasteful number, since it uses less digits than its factorization.

82454172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 503 (or 478 counting only the distinct ones).

The product of its digits is 17920, while the sum is 33.

The square root of 82454172 is about 9080.4279634828. The cubic root of 82454172 is about 435.2487624567.

The spelling of 82454172 in words is "eighty-two million, four hundred fifty-four thousand, one hundred seventy-two".