823423125 has 80 divisors (see below), whose sum is σ = 1605486080. Its totient is φ = 367416000.

The previous prime is 823423109. The next prime is 823423157. The reversal of 823423125 is 521324328.

It is not a de Polignac number, because 823423125 - 2⁴ = 823423109 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 823423092 and 823423101.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 563646 + ... + 565104.

It is an arithmetic number, because the mean of its divisors is an integer number (20068576).

Almost surely, 2^823423125 is an apocalyptic number.

It is an amenable number.

823423125 is a deficient number, since it is larger than the sum of its proper divisors (782062955).

823423125 is a wasteful number, since it uses less digits than its factorization.

823423125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1532 (or 1517 counting only the distinct ones).

The product of its digits is 11520, while the sum is 30.

The square root of 823423125 is about 28695.3502330953. The cubic root of 823423125 is about 937.2907977646.

The spelling of 823423125 in words is "eight hundred twenty-three million, four hundred twenty-three thousand, one hundred twenty-five".