823384485 has 144 divisors (see below), whose sum is σ = 1837442880. Its totient is φ = 337236480.

The previous prime is 823384481. The next prime is 823384489. The reversal of 823384485 is 584483328.

823384485 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (823384481) and next prime (823384489).

It is not a de Polignac number, because 823384485 - 2² = 823384481 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 823384485.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (823384481) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 2012961 + ... + 2013369.

It is an arithmetic number, because the mean of its divisors is an integer number (12760020).

Almost surely, 2^823384485 is an apocalyptic number.

It is an amenable number.

823384485 is an abundant number, since it is smaller than the sum of its proper divisors (1014058395).

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

823384485 is a wasteful number, since it uses less digits than its factorization.

823384485 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528 (or 518 counting only the distinct ones).

The product of its digits is 737280, while the sum is 45.

The square root of 823384485 is about 28694.6769453848. The cubic root of 823384485 is about 937.2761364150.

The spelling of 823384485 in words is "eight hundred twenty-three million, three hundred eighty-four thousand, four hundred eighty-five".