78819332 has 24 divisors (see below), whose sum is σ = 143337600. Its totient is φ = 37878176.

The previous prime is 78819331. The next prime is 78819337. The reversal of 78819332 is 23391887.

It is a self number, because there is not a number n which added to its sum of digits gives 78819332.

It is not an unprimeable number, because it can be changed into a prime (78819331) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26303 + ... + 29145.

It is an arithmetic number, because the mean of its divisors is an integer number (5972400).

Almost surely, 2^78819332 is an apocalyptic number.

It is an amenable number.

78819332 is a deficient number, since it is larger than the sum of its proper divisors (64518268).

78819332 is a wasteful number, since it uses less digits than its factorization.

78819332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3115 (or 3113 counting only the distinct ones).

The product of its digits is 72576, while the sum is 41.

The square root of 78819332 is about 8878.0252308720. The cubic root of 78819332 is about 428.7566970199.

The spelling of 78819332 in words is "seventy-eight million, eight hundred nineteen thousand, three hundred thirty-two".