823426172 has 12 divisors (see below), whose sum is σ = 1441830096. Its totient is φ = 411474720.

The previous prime is 823426171. The next prime is 823426193. The reversal of 823426172 is 271624328.

823426172 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (35) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823426171) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51704 + ... + 65727.

It is an arithmetic number, because the mean of its divisors is an integer number (120152508).

Almost surely, 2^823426172 is an apocalyptic number.

It is an amenable number.

823426172 is a deficient number, since it is larger than the sum of its proper divisors (618403924).

823426172 is a wasteful number, since it uses less digits than its factorization.

823426172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119188 (or 119186 counting only the distinct ones).

The product of its digits is 32256, while the sum is 35.

The square root of 823426172 is about 28695.4033252715. The cubic root of 823426172 is about 937.2919538821.

The spelling of 823426172 in words is "eight hundred twenty-three million, four hundred twenty-six thousand, one hundred seventy-two".