78544043 has 8 divisors (see below), whose sum is σ = 83046720. Its totient is φ = 74078280.

The previous prime is 78544031. The next prime is 78544051. The reversal of 78544043 is 34044587.

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 78544043 - 2¹² = 78539947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 78543994 and 78544012.

It is not an unprimeable number, because it can be changed into a prime (78547043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4793 + ... + 13418.

It is an arithmetic number, because the mean of its divisors is an integer number (10380840).

Almost surely, 2^78544043 is an apocalyptic number.

78544043 is a deficient number, since it is larger than the sum of its proper divisors (4502677).

78544043 is a wasteful number, since it uses less digits than its factorization.

78544043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18457.

The product of its (nonzero) digits is 53760, while the sum is 35.

The square root of 78544043 is about 8862.5077150883. The cubic root of 78544043 is about 428.2569478603.

The spelling of 78544043 in words is "seventy-eight million, five hundred forty-four thousand, forty-three".