782550216 has 96 divisors (see below), whose sum is σ = 2447303040. Its totient is φ = 221266944.

The previous prime is 782550203. The next prime is 782550227. The reversal of 782550216 is 612055287.

It is a happy number.

782550216 is a `hidden beast` number, since 7 + 82 + 550 + 21 + 6 = 666.

It is a super-2 number, since 2×782550216² = 1224769681123293312, which contains 22 as substring.

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

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 23 ways as a sum of consecutive naturals, for example, 40885 + ... + 56891.

It is an arithmetic number, because the mean of its divisors is an integer number (25492740).

Almost surely, 2^782550216 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 782550216, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1223651520).

782550216 is an abundant number, since it is smaller than the sum of its proper divisors (1664752824).

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

782550216 is a wasteful number, since it uses less digits than its factorization.

782550216 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16123 (or 16116 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 36.

The square root of 782550216 is about 27974.0990203438. The cubic root of 782550216 is about 921.5185287228.

The spelling of 782550216 in words is "seven hundred eighty-two million, five hundred fifty thousand, two hundred sixteen".