47434447 has 2 divisors, whose sum is σ = 47434448. Its totient is φ = 47434446.

The previous prime is 47434423. The next prime is 47434483. The reversal of 47434447 is 74443474.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-47434447 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47435447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23717223 + 23717224.

It is an arithmetic number, because the mean of its divisors is an integer number (23717224).

Almost surely, 2^47434447 is an apocalyptic number.

47434447 is a deficient number, since it is larger than the sum of its proper divisors (1).

47434447 is an equidigital number, since it uses as much as digits as its factorization.

47434447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 150528, while the sum is 37.

The square root of 47434447 is about 6887.2670196530. The cubic root of 47434447 is about 361.9911452511.

The spelling of 47434447 in words is "forty-seven million, four hundred thirty-four thousand, four hundred forty-seven".