829073172 has 12 divisors (see below), whose sum is σ = 1934504096. Its totient is φ = 276357720.

The previous prime is 829073123. The next prime is 829073261. The reversal of 829073172 is 271370928.

It is a tau number, because it is divible by the number of its divisors (12).

It is a self number, because there is not a number n which added to its sum of digits gives 829073172.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34544704 + ... + 34544727.

Almost surely, 2^829073172 is an apocalyptic number.

It is an amenable number.

829073172 is an abundant number, since it is smaller than the sum of its proper divisors (1105430924).

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

829073172 is a wasteful number, since it uses less digits than its factorization.

829073172 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69089438 (or 69089436 counting only the distinct ones).

The product of its (nonzero) digits is 42336, while the sum is 39.

The square root of 829073172 is about 28793.6307540400. The cubic root of 829073172 is about 939.4297023579.

The spelling of 829073172 in words is "eight hundred twenty-nine million, seventy-three thousand, one hundred seventy-two".