47645171 has 16 divisors (see below), whose sum is σ = 56862720. Its totient is φ = 39061440.

The previous prime is 47645153. The next prime is 47645183. The reversal of 47645171 is 17154674.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 47645171 - 2¹⁰ = 47644147 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (47645111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18080 + ... + 20546.

It is an arithmetic number, because the mean of its divisors is an integer number (3553920).

Almost surely, 2^47645171 is an apocalyptic number.

47645171 is a deficient number, since it is larger than the sum of its proper divisors (9217549).

47645171 is a wasteful number, since it uses less digits than its factorization.

47645171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2594.

The product of its digits is 23520, while the sum is 35.

The square root of 47645171 is about 6902.5481526752. The cubic root of 47645171 is about 362.5263930050.

The spelling of 47645171 in words is "forty-seven million, six hundred forty-five thousand, one hundred seventy-one".