78982412 has 6 divisors (see below), whose sum is σ = 138219228. Its totient is φ = 39491204.

The previous prime is 78982369. The next prime is 78982417. The reversal of 78982412 is 21428987.

It is a self number, because there is not a number n which added to its sum of digits gives 78982412.

It is not an unprimeable number, because it can be changed into a prime (78982417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9872798 + ... + 9872805.

It is an arithmetic number, because the mean of its divisors is an integer number (23036538).

Almost surely, 2^78982412 is an apocalyptic number.

It is an amenable number.

78982412 is a deficient number, since it is larger than the sum of its proper divisors (59236816).

78982412 is a wasteful number, since it uses less digits than its factorization.

78982412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19745607 (or 19745605 counting only the distinct ones).

The product of its digits is 64512, while the sum is 41.

The square root of 78982412 is about 8887.2049599410. The cubic root of 78982412 is about 429.0521975960.

The spelling of 78982412 in words is "seventy-eight million, nine hundred eighty-two thousand, four hundred twelve".