78560047 has 8 divisors (see below), whose sum is σ = 79348896. Its totient is φ = 77774592.

The previous prime is 78560029. The next prime is 78560051. The reversal of 78560047 is 74006587.

It is a happy number.

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 78560047 - 2¹⁵ = 78527279 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 78559988 and 78560015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (78560087) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 80758 + ... + 81724.

It is an arithmetic number, because the mean of its divisors is an integer number (9918612).

Almost surely, 2^78560047 is an apocalyptic number.

78560047 is a deficient number, since it is larger than the sum of its proper divisors (788849).

78560047 is a wasteful number, since it uses less digits than its factorization.

78560047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1697.

The product of its (nonzero) digits is 47040, while the sum is 37.

The square root of 78560047 is about 8863.4105738141. The cubic root of 78560047 is about 428.2860328529.

The spelling of 78560047 in words is "seventy-eight million, five hundred sixty thousand, forty-seven".