823465431 has 24 divisors (see below), whose sum is σ = 1300051584. Its totient is φ = 500014080.

The previous prime is 823465421. The next prime is 823465457. The reversal of 823465431 is 134564328.

823465431 is a `hidden beast` number, since 82 + 34 + 6 + 543 + 1 = 666.

823465431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 823465431 - 2⁹ = 823464919 is a prime.

It is a super-2 number, since 2×823465431² = 1356190632104031522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823465421) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 82066 + ... + 91551.

It is an arithmetic number, because the mean of its divisors is an integer number (54168816).

Almost surely, 2^823465431 is an apocalyptic number.

823465431 is a deficient number, since it is larger than the sum of its proper divisors (476586153).

823465431 is a wasteful number, since it uses less digits than its factorization.

823465431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 173671 (or 173668 counting only the distinct ones).

The product of its digits is 69120, while the sum is 36.

The square root of 823465431 is about 28696.0873813835. The cubic root of 823465431 is about 937.3068495952.

The spelling of 823465431 in words is "eight hundred twenty-three million, four hundred sixty-five thousand, four hundred thirty-one".