78718379 has 8 divisors (see below), whose sum is σ = 79333968. Its totient is φ = 78105600.

The previous prime is 78718363. The next prime is 78718421. The reversal of 78718379 is 97381787.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 78718379 - 2⁴ = 78718363 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (78708379) 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, 130679 + ... + 131279.

It is an arithmetic number, because the mean of its divisors is an integer number (9916746).

Almost surely, 2^78718379 is an apocalyptic number.

78718379 is a deficient number, since it is larger than the sum of its proper divisors (615589).

78718379 is a wasteful number, since it uses less digits than its factorization.

78718379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405.

The product of its digits is 592704, while the sum is 50.

The square root of 78718379 is about 8872.3378542524. The cubic root of 78718379 is about 428.5735661110.

It can be divided in two parts, 78718 and 379, that added together give a palindrome (79097).

The spelling of 78718379 in words is "seventy-eight million, seven hundred eighteen thousand, three hundred seventy-nine".