47689017 has 4 divisors (see below), whose sum is σ = 63585360. Its totient is φ = 31792676.

The previous prime is 47689013. The next prime is 47689091. The reversal of 47689017 is 71098674.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 47689017 - 2² = 47689013 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 47689017.

It is not an unprimeable number, because it can be changed into a prime (47689013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7948167 + ... + 7948172.

It is an arithmetic number, because the mean of its divisors is an integer number (15896340).

Almost surely, 2^47689017 is an apocalyptic number.

It is an amenable number.

47689017 is a deficient number, since it is larger than the sum of its proper divisors (15896343).

47689017 is a wasteful number, since it uses less digits than its factorization.

47689017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15896342.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 47689017 is about 6905.7234957678. The cubic root of 47689017 is about 362.6375652283.

The spelling of 47689017 in words is "forty-seven million, six hundred eighty-nine thousand, seventeen".