823634834 has 16 divisors (see below), whose sum is σ = 1354756320. Its totient is φ = 372437760.

The previous prime is 823634831. The next prime is 823634839. The reversal of 823634834 is 438436328.

823634834 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 823634791 and 823634800.

It is not an unprimeable number, because it can be changed into a prime (823634831) 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, 92744 + ... + 101235.

It is an arithmetic number, because the mean of its divisors is an integer number (84672270).

Almost surely, 2^823634834 is an apocalyptic number.

823634834 is a deficient number, since it is larger than the sum of its proper divisors (531121486).

823634834 is a wasteful number, since it uses less digits than its factorization.

823634834 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194185.

The product of its digits is 331776, while the sum is 41.

The square root of 823634834 is about 28699.0389037682. The cubic root of 823634834 is about 937.3711193262.

The spelling of 823634834 in words is "eight hundred twenty-three million, six hundred thirty-four thousand, eight hundred thirty-four".