823469427 has 24 divisors (see below), whose sum is σ = 1322079408. Its totient is φ = 489652800.

The previous prime is 823469411. The next prime is 823469453. The reversal of 823469427 is 724964328.

It is not a de Polignac number, because 823469427 - 2⁴ = 823469411 is a prime.

It is not an unprimeable number, because it can be changed into a prime (823469467) 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, 73224 + ... + 83717.

It is an arithmetic number, because the mean of its divisors is an integer number (55086642).

Almost surely, 2^823469427 is an apocalyptic number.

823469427 is a deficient number, since it is larger than the sum of its proper divisors (498609981).

823469427 is a wasteful number, since it uses less digits than its factorization.

823469427 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157011 (or 157008 counting only the distinct ones).

The product of its digits is 580608, while the sum is 45.

The square root of 823469427 is about 28696.1570075158. The cubic root of 823469427 is about 937.3083657374.

The spelling of 823469427 in words is "eight hundred twenty-three million, four hundred sixty-nine thousand, four hundred twenty-seven".