823042904 has 16 divisors (see below), whose sum is σ = 1544809320. Its totient is φ = 411093760.

The previous prime is 823042889. The next prime is 823042933. The reversal of 823042904 is 409240328.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45209 + ... + 60744.

Almost surely, 2^823042904 is an apocalyptic number.

It is an amenable number.

823042904 is a deficient number, since it is larger than the sum of its proper divisors (721766416).

823042904 is a wasteful number, since it uses less digits than its factorization.

823042904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106930 (or 106926 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 32.

The square root of 823042904 is about 28688.7243355295. The cubic root of 823042904 is about 937.1465088400.

The spelling of 823042904 in words is "eight hundred twenty-three million, forty-two thousand, nine hundred four".