47129473 has 2 divisors, whose sum is σ = 47129474. Its totient is φ = 47129472.

The previous prime is 47129471. The next prime is 47129483. The reversal of 47129473 is 37492174.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 35617024 + 11512449 = 5968^2 + 3393^2 .

It is a cyclic number.

It is not a de Polignac number, because 47129473 - 2¹ = 47129471 is a prime.

Together with 47129471, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (47129471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23564736 + 23564737.

It is an arithmetic number, because the mean of its divisors is an integer number (23564737).

Almost surely, 2^47129473 is an apocalyptic number.

It is an amenable number.

47129473 is a deficient number, since it is larger than the sum of its proper divisors (1).

47129473 is an equidigital number, since it uses as much as digits as its factorization.

47129473 is an evil number, because the sum of its binary digits is even.

The product of its digits is 42336, while the sum is 37.

The square root of 47129473 is about 6865.0908952468. The cubic root of 47129473 is about 361.2136840047.

The spelling of 47129473 in words is "forty-seven million, one hundred twenty-nine thousand, four hundred seventy-three".