47418929 has 2 divisors, whose sum is σ = 47418930. Its totient is φ = 47418928.

The previous prime is 47418863. The next prime is 47418953. The reversal of 47418929 is 92981474.

47418929 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 44528929 + 2890000 = 6673^2 + 1700^2 .

It is a cyclic number.

It is not a de Polignac number, because 47418929 - 2¹² = 47414833 is a prime.

It is a Chen prime.

It is an alternating number because its digits alternate between even and odd.

It is a self number, because there is not a number n which added to its sum of digits gives 47418929.

It is not a weakly prime, because it can be changed into another prime (47418989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23709464 + 23709465.

It is an arithmetic number, because the mean of its divisors is an integer number (23709465).

Almost surely, 2^47418929 is an apocalyptic number.

It is an amenable number.

47418929 is a deficient number, since it is larger than the sum of its proper divisors (1).

47418929 is an equidigital number, since it uses as much as digits as its factorization.

47418929 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 145152, while the sum is 44.

The square root of 47418929 is about 6886.1403558162. The cubic root of 47418929 is about 361.9516662674.

The spelling of 47418929 in words is "forty-seven million, four hundred eighteen thousand, nine hundred twenty-nine".