78471379 has 8 divisors (see below), whose sum is σ = 89743968. Its totient is φ = 67214400.

The previous prime is 78471347. The next prime is 78471391. The reversal of 78471379 is 97317487.

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 78471379 - 2⁵ = 78471347 is a prime.

It is a Duffinian number.

It is a plaindrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (78471319) 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, 10359 + ... + 16255.

It is an arithmetic number, because the mean of its divisors is an integer number (11217996).

Almost surely, 2^78471379 is an apocalyptic number.

78471379 is a deficient number, since it is larger than the sum of its proper divisors (11272589).

78471379 is a wasteful number, since it uses less digits than its factorization.

78471379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7805.

The product of its digits is 296352, while the sum is 46.

The square root of 78471379 is about 8858.4072496132. The cubic root of 78471379 is about 428.1248416644.

The spelling of 78471379 in words is "seventy-eight million, four hundred seventy-one thousand, three hundred seventy-nine".