47047777 has 8 divisors (see below), whose sum is σ = 53816000. Its totient is φ = 40291344.

The previous prime is 47047771. The next prime is 47047783. The reversal of 47047777 is 77774074.

47047777 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (47047771) and next prime (47047783).

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 47047777 - 2²³ = 38659169 is a prime.

47047777 is a modest number, since divided by 7777 gives 4704 as remainder.

It is not an unprimeable number, because it can be changed into a prime (47047771) 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, 8674 + ... + 13012.

It is an arithmetic number, because the mean of its divisors is an integer number (6727000).

Almost surely, 2^47047777 is an apocalyptic number.

It is an amenable number.

47047777 is a deficient number, since it is larger than the sum of its proper divisors (6768223).

47047777 is a wasteful number, since it uses less digits than its factorization.

47047777 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5895.

The product of its (nonzero) digits is 268912, while the sum is 43.

The square root of 47047777 is about 6859.1382111749. The cubic root of 47047777 is about 361.0048494986.

The spelling of 47047777 in words is "forty-seven million, forty-seven thousand, seven hundred seventy-seven".