823212504 has 64 divisors (see below), whose sum is σ = 2386137600. Its totient is φ = 262471968.

The previous prime is 823212493. The next prime is 823212517. The reversal of 823212504 is 405212328.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 15 ways as a sum of consecutive naturals, for example, 77884 + ... + 87819.

It is an arithmetic number, because the mean of its divisors is an integer number (37283400).

Almost surely, 2^823212504 is an apocalyptic number.

It is an amenable number.

823212504 is an abundant number, since it is smaller than the sum of its proper divisors (1562925096).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

823212504 is a wasteful number, since it uses less digits than its factorization.

823212504 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165741 (or 165731 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

The square root of 823212504 is about 28691.6800484043. The cubic root of 823212504 is about 937.2108753232.

It can be divided in two parts, 8232 and 12504, that added together give a 4-th power (20736 = 12⁴).

The spelling of 823212504 in words is "eight hundred twenty-three million, two hundred twelve thousand, five hundred four".