47989889 has 8 divisors (see below), whose sum is σ = 49066080. Its totient is φ = 46924416.

The previous prime is 47989883. The next prime is 47989939. The reversal of 47989889 is 98898974.

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 47989889 - 2⁸ = 47989633 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47989883) 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, 6737 + ... + 11889.

It is an arithmetic number, because the mean of its divisors is an integer number (6133260).

Almost surely, 2^47989889 is an apocalyptic number.

It is an amenable number.

47989889 is a deficient number, since it is larger than the sum of its proper divisors (1076191).

47989889 is a wasteful number, since it uses less digits than its factorization.

47989889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5359.

The product of its digits is 10450944, while the sum is 62.

The square root of 47989889 is about 6927.4734932730. The cubic root of 47989889 is about 363.3985988490.

The spelling of 47989889 in words is "forty-seven million, nine hundred eighty-nine thousand, eight hundred eighty-nine".