823464216 has 48 divisors (see below), whose sum is σ = 2327186160. Its totient is φ = 262553280.

The previous prime is 823464209. The next prime is 823464227. The reversal of 823464216 is 612464328.

823464216 is a `hidden beast` number, since 8 + 2 + 3 + 4 + 642 + 1 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 246975 + ... + 250286.

It is an arithmetic number, because the mean of its divisors is an integer number (48483045).

Almost surely, 2^823464216 is an apocalyptic number.

It is an amenable number.

823464216 is an abundant number, since it is smaller than the sum of its proper divisors (1503721944).

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

823464216 is a wasteful number, since it uses less digits than its factorization.

823464216 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 497296 (or 497289 counting only the distinct ones).

The product of its digits is 55296, while the sum is 36.

The square root of 823464216 is about 28696.0662112423. The cubic root of 823464216 is about 937.3063886050.

The spelling of 823464216 in words is "eight hundred twenty-three million, four hundred sixty-four thousand, two hundred sixteen".