47145886 has 8 divisors (see below), whose sum is σ = 71074800. Its totient is φ = 23454288.

The previous prime is 47145877. The next prime is 47145887. The reversal of 47145886 is 68854174.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47145887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58831 + ... + 59626.

It is an arithmetic number, because the mean of its divisors is an integer number (8884350).

Almost surely, 2^47145886 is an apocalyptic number.

47145886 is a deficient number, since it is larger than the sum of its proper divisors (23928914).

47145886 is a wasteful number, since it uses less digits than its factorization.

47145886 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118658.

The product of its digits is 215040, while the sum is 43.

The square root of 47145886 is about 6866.2861868699. The cubic root of 47145886 is about 361.2556104380.

The spelling of 47145886 in words is "forty-seven million, one hundred forty-five thousand, eight hundred eighty-six".