784213313 has 16 divisors (see below), whose sum is σ = 882456960. Its totient is φ = 691473024.

The previous prime is 784213259. The next prime is 784213319. The reversal of 784213313 is 313312487.

784213313 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 784213313 - 2⁶ = 784213249 is a prime.

It is a super-2 number, since 2×784213313² = 1229981040572871938, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 784213313.

It is not an unprimeable number, because it can be changed into a prime (784213319) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 307598 + ... + 310136.

It is an arithmetic number, because the mean of its divisors is an integer number (55153560).

Almost surely, 2^784213313 is an apocalyptic number.

It is an amenable number.

784213313 is a deficient number, since it is larger than the sum of its proper divisors (98243647).

784213313 is a wasteful number, since it uses less digits than its factorization.

784213313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3608.

The product of its digits is 12096, while the sum is 32.

The square root of 784213313 is about 28003.8089016476. The cubic root of 784213313 is about 922.1708788892.

The spelling of 784213313 in words is "seven hundred eighty-four million, two hundred thirteen thousand, three hundred thirteen".