47318889 has 8 divisors (see below), whose sum is σ = 65835072. Its totient is φ = 30174320.

The previous prime is 47318861. The next prime is 47318891. The reversal of 47318889 is 98881374.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47318889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47318839) 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, 342822 + ... + 342959.

It is an arithmetic number, because the mean of its divisors is an integer number (8229384).

Almost surely, 2^47318889 is an apocalyptic number.

It is an amenable number.

47318889 is a deficient number, since it is larger than the sum of its proper divisors (18516183).

47318889 is a wasteful number, since it uses less digits than its factorization.

47318889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 685807.

The product of its digits is 387072, while the sum is 48.

The square root of 47318889 is about 6878.8726547306. The cubic root of 47318889 is about 361.6969498546.

The spelling of 47318889 in words is "forty-seven million, three hundred eighteen thousand, eight hundred eighty-nine".