47668989 has 8 divisors (see below), whose sum is σ = 63604512. Its totient is φ = 31756400.

The previous prime is 47668963. The next prime is 47669029. The reversal of 47668989 is 98986674.

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 47668989 - 2¹⁵ = 47636221 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47668919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87 + ... + 9764.

It is an arithmetic number, because the mean of its divisors is an integer number (7950564).

Almost surely, 2^47668989 is an apocalyptic number.

It is an amenable number.

47668989 is a deficient number, since it is larger than the sum of its proper divisors (15935523).

47668989 is a wasteful number, since it uses less digits than its factorization.

47668989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11467.

The product of its digits is 5225472, while the sum is 57.

The square root of 47668989 is about 6904.2732419857. The cubic root of 47668989 is about 362.5867923768.

The spelling of 47668989 in words is "forty-seven million, six hundred sixty-eight thousand, nine hundred eighty-nine".