47146971 has 4 divisors (see below), whose sum is σ = 62862632. Its totient is φ = 31431312.

The previous prime is 47146937. The next prime is 47147041. The reversal of 47146971 is 17964174.

It is a semiprime because it is the product of two primes.

It is a de Polignac number, because none of the positive numbers 2^k-47146971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47146921) 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, 7857826 + ... + 7857831.

It is an arithmetic number, because the mean of its divisors is an integer number (15715658).

Almost surely, 2^47146971 is an apocalyptic number.

47146971 is a deficient number, since it is larger than the sum of its proper divisors (15715661).

47146971 is a wasteful number, since it uses less digits than its factorization.

47146971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15715660.

The product of its digits is 42336, while the sum is 39.

The square root of 47146971 is about 6866.3651956475. The cubic root of 47146971 is about 361.2583816895.

The spelling of 47146971 in words is "forty-seven million, one hundred forty-six thousand, nine hundred seventy-one".