823871338 has 4 divisors (see below), whose sum is σ = 1235807010. Its totient is φ = 411935668.

The previous prime is 823871333. The next prime is 823871351. The reversal of 823871338 is 833178328.

823871338 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It can be written as a sum of positive squares in only one way, i.e., 822943969 + 927369 = 28687^2 + 963^2 .

It is a junction number, because it is equal to n+sod(n) for n = 823871294 and 823871303.

It is not an unprimeable number, because it can be changed into a prime (823871333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 205967833 + ... + 205967836.

Almost surely, 2^823871338 is an apocalyptic number.

823871338 is a deficient number, since it is larger than the sum of its proper divisors (411935672).

823871338 is a wasteful number, since it uses less digits than its factorization.

823871338 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 411935671.

The product of its digits is 193536, while the sum is 43.

The square root of 823871338 is about 28703.1590247485. The cubic root of 823871338 is about 937.4608317384.

The spelling of 823871338 in words is "eight hundred twenty-three million, eight hundred seventy-one thousand, three hundred thirty-eight".