47393471 has 4 divisors (see below), whose sum is σ = 47446632. Its totient is φ = 47340312.

The previous prime is 47393447. The next prime is 47393483. The reversal of 47393471 is 17439374.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 47393471 - 2⁶ = 47393407 is a prime.

It is a super-3 number, since 3×47393471³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (47393441) 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, 25220 + ... + 27033.

It is an arithmetic number, because the mean of its divisors is an integer number (11861658).

Almost surely, 2^47393471 is an apocalyptic number.

47393471 is a deficient number, since it is larger than the sum of its proper divisors (53161).

47393471 is an equidigital number, since it uses as much as digits as its factorization.

47393471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53160.

The product of its digits is 63504, while the sum is 38.

The square root of 47393471 is about 6884.2916120687. The cubic root of 47393471 is about 361.8868805006.

The spelling of 47393471 in words is "forty-seven million, three hundred ninety-three thousand, four hundred seventy-one".