823471399 has 8 divisors (see below), whose sum is σ = 827231120. Its totient is φ = 819720000.

The previous prime is 823471373. The next prime is 823471409. The reversal of 823471399 is 993174328.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 823471399 - 2⁵ = 823471367 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823471309) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 272899 + ... + 275899.

It is an arithmetic number, because the mean of its divisors is an integer number (103403890).

Almost surely, 2^823471399 is an apocalyptic number.

823471399 is a deficient number, since it is larger than the sum of its proper divisors (3759721).

823471399 is a wasteful number, since it uses less digits than its factorization.

823471399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4161.

The product of its digits is 326592, while the sum is 46.

The square root of 823471399 is about 28696.1913674968. The cubic root of 823471399 is about 937.3091139419.

The spelling of 823471399 in words is "eight hundred twenty-three million, four hundred seventy-one thousand, three hundred ninety-nine".