47078 has 4 divisors (see below), whose sum is σ = 70620. Its totient is φ = 23538.

The previous prime is 47059. The next prime is 47087. The reversal of 47078 is 87074.

It is a semiprime because it is the product of two primes.

It is an alternating number because its digits alternate between even and odd.

It is a congruent number.

It is an unprimeable number.

47078 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11768 + ... + 11771.

It is an arithmetic number, because the mean of its divisors is an integer number (17655).

2⁴⁷⁰⁷⁸ is an apocalyptic number.

47078 is a deficient number, since it is larger than the sum of its proper divisors (23542).

47078 is a wasteful number, since it uses less digits than its factorization.

47078 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23541.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 47078 is about 216.9746528975. The cubic root of 47078 is about 36.1082134865.

The spelling of 47078 in words is "forty-seven thousand, seventy-eight".