78883412 has 6 divisors (see below), whose sum is σ = 138045978. Its totient is φ = 39441704.

The previous prime is 78883391. The next prime is 78883433. The reversal of 78883412 is 21438887.

78883412 is digitally balanced in base 9, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (78883391) and next prime (78883433).

It can be written as a sum of positive squares in only one way, i.e., 73342096 + 5541316 = 8564^2 + 2354^2 .

78883412 is strictly pandigital in base 9.

It is a self number, because there is not a number n which added to its sum of digits gives 78883412.

It is a congruent number.

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 as a sum of consecutive naturals, namely, 9860423 + ... + 9860430.

It is an arithmetic number, because the mean of its divisors is an integer number (23007663).

Almost surely, 2^78883412 is an apocalyptic number.

It is an amenable number.

78883412 is a deficient number, since it is larger than the sum of its proper divisors (59162566).

78883412 is a wasteful number, since it uses less digits than its factorization.

78883412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19720857 (or 19720855 counting only the distinct ones).

The product of its digits is 86016, while the sum is 41.

The square root of 78883412 is about 8881.6334083321. The cubic root of 78883412 is about 428.8728583988.

The spelling of 78883412 in words is "seventy-eight million, eight hundred eighty-three thousand, four hundred twelve".