47689817 has 8 divisors (see below), whose sum is σ = 54544512. Its totient is φ = 40845600.

The previous prime is 47689801. The next prime is 47689823. The reversal of 47689817 is 71898674.

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 47689817 - 2⁴ = 47689801 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47689217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15692 + ... + 18482.

It is an arithmetic number, because the mean of its divisors is an integer number (6818064).

Almost surely, 2^47689817 is an apocalyptic number.

It is an amenable number.

47689817 is a deficient number, since it is larger than the sum of its proper divisors (6854695).

47689817 is a wasteful number, since it uses less digits than its factorization.

47689817 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5239.

The product of its digits is 677376, while the sum is 50.

The square root of 47689817 is about 6905.7814184928. The cubic root of 47689817 is about 362.6395930078.

The spelling of 47689817 in words is "forty-seven million, six hundred eighty-nine thousand, eight hundred seventeen".