78782323 has 6 divisors (see below), whose sum is σ = 79580372. Its totient is φ = 77992200.

The previous prime is 78782317. The next prime is 78782329. The reversal of 78782323 is 32328787.

It is an interprime number because it is at equal distance from previous prime (78782317) and next prime (78782329).

It is not a de Polignac number, because 78782323 - 2⁹ = 78781811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78782329) by changing a digit.

It is an upside-down number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6340 + ... + 14062.

Almost surely, 2^78782323 is an apocalyptic number.

78782323 is a deficient number, since it is larger than the sum of its proper divisors (798049).

78782323 is an equidigital number, since it uses as much as digits as its factorization.

78782323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7925 (or 7824 counting only the distinct ones).

The product of its digits is 112896, while the sum is 40.

The square root of 78782323 is about 8875.9406825418. The cubic root of 78782323 is about 428.6895800644.

It can be divided in two parts, 7878 and 2323, that added together give a palindrome (10201).

The spelling of 78782323 in words is "seventy-eight million, seven hundred eighty-two thousand, three hundred twenty-three".