47947858 has 16 divisors (see below), whose sum is σ = 82286784. Its totient is φ = 20526480.

The previous prime is 47947853. The next prime is 47947859. The reversal of 47947858 is 85874974.

It is not an unprimeable number, because it can be changed into a prime (47947853) 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, 20316 + ... + 22552.

It is an arithmetic number, because the mean of its divisors is an integer number (5142924).

Almost surely, 2^47947858 is an apocalyptic number.

47947858 is a deficient number, since it is larger than the sum of its proper divisors (34338926).

47947858 is a wasteful number, since it uses less digits than its factorization.

47947858 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3777.

The product of its digits is 2257920, while the sum is 52.

The square root of 47947858 is about 6924.4391830675. The cubic root of 47947858 is about 363.2924760237.

The spelling of 47947858 in words is "forty-seven million, nine hundred forty-seven thousand, eight hundred fifty-eight".