47420471 has 4 divisors (see below), whose sum is σ = 54194832. Its totient is φ = 40646112.

The previous prime is 47420467. The next prime is 47420491. The reversal of 47420471 is 17402474.

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 47420471 - 2² = 47420467 is a prime.

It is a super-3 number, since 3×47420471³ (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 (47420441) 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, 3387170 + ... + 3387183.

It is an arithmetic number, because the mean of its divisors is an integer number (13548708).

Almost surely, 2^47420471 is an apocalyptic number.

47420471 is a deficient number, since it is larger than the sum of its proper divisors (6774361).

47420471 is an equidigital number, since it uses as much as digits as its factorization.

47420471 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6774360.

The product of its (nonzero) digits is 6272, while the sum is 29.

The square root of 47420471 is about 6886.2523189323. The cubic root of 47420471 is about 361.9555896192.

The spelling of 47420471 in words is "forty-seven million, four hundred twenty thousand, four hundred seventy-one".