78333396 has 24 divisors (see below), whose sum is σ = 186668160. Its totient is φ = 25555392.

The previous prime is 78333391. The next prime is 78333397. The reversal of 78333396 is 69333387.

It is a super-2 number, since 2×78333396² = 12272241857785632, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78333391) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 68881 + ... + 70008.

It is an arithmetic number, because the mean of its divisors is an integer number (7777840).

Almost surely, 2^78333396 is an apocalyptic number.

It is an amenable number.

78333396 is an abundant number, since it is smaller than the sum of its proper divisors (108334764).

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

78333396 is a wasteful number, since it uses less digits than its factorization.

78333396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138943 (or 138941 counting only the distinct ones).

The product of its digits is 244944, while the sum is 42.

The square root of 78333396 is about 8850.6155718119. The cubic root of 78333396 is about 427.8737581501.

Subtracting from 78333396 its reverse (69333387), we obtain a palindrome (9000009).

It can be divided in two parts, 7 and 8333396, that added together give a triangular number (8333403 = T₄₀₈₂).

The spelling of 78333396 in words is "seventy-eight million, three hundred thirty-three thousand, three hundred ninety-six".