78436712 has 32 divisors (see below), whose sum is σ = 155719200. Its totient is φ = 36936000.

The previous prime is 78436711. The next prime is 78436717. The reversal of 78436712 is 21763487.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (38).

It is not an unprimeable number, because it can be changed into a prime (78436711) 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, 26087 + ... + 28937.

It is an arithmetic number, because the mean of its divisors is an integer number (4866225).

Almost surely, 2^78436712 is an apocalyptic number.

It is an amenable number.

78436712 is a deficient number, since it is larger than the sum of its proper divisors (77282488).

78436712 is a wasteful number, since it uses less digits than its factorization.

78436712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3057 (or 3053 counting only the distinct ones).

The product of its digits is 56448, while the sum is 38.

The square root of 78436712 is about 8856.4503047214. The cubic root of 78436712 is about 428.0617868699.

The spelling of 78436712 in words is "seventy-eight million, four hundred thirty-six thousand, seven hundred twelve".