47428471 has 2 divisors, whose sum is σ = 47428472. Its totient is φ = 47428470.

The previous prime is 47428463. The next prime is 47428483. The reversal of 47428471 is 17482474.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 47428471 - 2³ = 47428463 is a prime.

It is a super-3 number, since 3×47428471³ (a number of 24 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a self number, because there is not a number n which added to its sum of digits gives 47428471.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (47428411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23714235 + 23714236.

It is an arithmetic number, because the mean of its divisors is an integer number (23714236).

Almost surely, 2^47428471 is an apocalyptic number.

47428471 is a deficient number, since it is larger than the sum of its proper divisors (1).

47428471 is an equidigital number, since it uses as much as digits as its factorization.

47428471 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 50176, while the sum is 37.

The square root of 47428471 is about 6886.8331619112. The cubic root of 47428471 is about 361.9759428678.

The spelling of 47428471 in words is "forty-seven million, four hundred twenty-eight thousand, four hundred seventy-one".