47018471 has 4 divisors (see below), whose sum is σ = 48018912. Its totient is φ = 46018032.

The previous prime is 47018443. The next prime is 47018507. The reversal of 47018471 is 17481074.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47018471 is a prime.

It is a super-3 number, since 3×47018471³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47015471) 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, 500150 + ... + 500243.

It is an arithmetic number, because the mean of its divisors is an integer number (12004728).

Almost surely, 2^47018471 is an apocalyptic number.

47018471 is a deficient number, since it is larger than the sum of its proper divisors (1000441).

47018471 is a wasteful number, since it uses less digits than its factorization.

47018471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1000440.

The product of its (nonzero) digits is 6272, while the sum is 32.

The square root of 47018471 is about 6857.0016041999. The cubic root of 47018471 is about 360.9298774438.

The spelling of 47018471 in words is "forty-seven million, eighteen thousand, four hundred seventy-one".