47705679 has 20 divisors (see below), whose sum is σ = 81445584. Its totient is φ = 27260064.

The previous prime is 47705677. The next prime is 47705687. The reversal of 47705679 is 97650774.

It is not a de Polignac number, because 47705679 - 2¹ = 47705677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47705677) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 41502 + ... + 42635.

Almost surely, 2^47705679 is an apocalyptic number.

47705679 is a deficient number, since it is larger than the sum of its proper divisors (33739905).

47705679 is an equidigital number, since it uses as much as digits as its factorization.

47705679 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84156 (or 84147 counting only the distinct ones).

The product of its (nonzero) digits is 370440, while the sum is 45.

The square root of 47705679 is about 6906.9297810243. The cubic root of 47705679 is about 362.6797941238.

It can be divided in two parts, 47705 and 679, that added together give a palindrome (48384).

The spelling of 47705679 in words is "forty-seven million, seven hundred five thousand, six hundred seventy-nine".