78334412 has 24 divisors (see below), whose sum is σ = 154051296. Its totient is φ = 34581888.

The previous prime is 78334393. The next prime is 78334441. The reversal of 78334412 is 21443387.

It is a super-2 number, since 2×78334412² = 12272560206771488, which contains 22 as substring.

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 7 ways as a sum of consecutive naturals, for example, 31553 + ... + 33944.

It is an arithmetic number, because the mean of its divisors is an integer number (6418804).

Almost surely, 2^78334412 is an apocalyptic number.

It is an amenable number.

78334412 is a deficient number, since it is larger than the sum of its proper divisors (75716884).

78334412 is a wasteful number, since it uses less digits than its factorization.

78334412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65537 (or 65535 counting only the distinct ones).

The product of its digits is 16128, while the sum is 32.

The square root of 78334412 is about 8850.6729687634. The cubic root of 78334412 is about 427.8756080118.

Adding to 78334412 its reverse (21443387), we get a palindrome (99777799).

The spelling of 78334412 in words is "seventy-eight million, three hundred thirty-four thousand, four hundred twelve".