47715897 has 12 divisors (see below), whose sum is σ = 67147440. Its totient is φ = 30135672.

The previous prime is 47715893. The next prime is 47715917. The reversal of 47715897 is 79851774.

It is not a de Polignac number, because 47715897 - 2² = 47715893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (47715893) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20947 + ... + 23112.

It is an arithmetic number, because the mean of its divisors is an integer number (5595620).

Almost surely, 2^47715897 is an apocalyptic number.

It is an amenable number.

47715897 is a deficient number, since it is larger than the sum of its proper divisors (19431543).

47715897 is a wasteful number, since it uses less digits than its factorization.

47715897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44100 (or 44081 counting only the distinct ones).

The product of its digits is 493920, while the sum is 48.

The square root of 47715897 is about 6907.6694333183. The cubic root of 47715897 is about 362.7056862025.

The spelling of 47715897 in words is "forty-seven million, seven hundred fifteen thousand, eight hundred ninety-seven".