823952473 has 4 divisors (see below), whose sum is σ = 831511780. Its totient is φ = 816393168.

The previous prime is 823952471. The next prime is 823952497. The reversal of 823952473 is 374259328.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 469458889 + 354493584 = 21667^2 + 18828^2 .

It is a cyclic number.

It is not a de Polignac number, because 823952473 - 2¹ = 823952471 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (823952471) 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, 3779490 + ... + 3779707.

It is an arithmetic number, because the mean of its divisors is an integer number (207877945).

Almost surely, 2^823952473 is an apocalyptic number.

It is an amenable number.

823952473 is a deficient number, since it is larger than the sum of its proper divisors (7559307).

823952473 is a wasteful number, since it uses less digits than its factorization.

823952473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7559306.

The product of its digits is 362880, while the sum is 43.

The square root of 823952473 is about 28704.5723361279. The cubic root of 823952473 is about 937.4916044996.

The spelling of 823952473 in words is "eight hundred twenty-three million, nine hundred fifty-two thousand, four hundred seventy-three".