47778067 has 4 divisors (see below), whose sum is σ = 48561376. Its totient is φ = 46994760.

The previous prime is 47778047. The next prime is 47778089. The reversal of 47778067 is 76087774.

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

It is a cyclic number.

It is not a de Polignac number, because 47778067 - 2¹¹ = 47776019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47778047) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 391563 + ... + 391684.

It is an arithmetic number, because the mean of its divisors is an integer number (12140344).

Almost surely, 2^47778067 is an apocalyptic number.

47778067 is a deficient number, since it is larger than the sum of its proper divisors (783309).

47778067 is an equidigital number, since it uses as much as digits as its factorization.

47778067 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 783308.

The product of its (nonzero) digits is 460992, while the sum is 46.

The square root of 47778067 is about 6912.1680390453. The cubic root of 47778067 is about 362.8631433440.

The spelling of 47778067 in words is "forty-seven million, seven hundred seventy-eight thousand, sixty-seven".