47044681 has 2 divisors, whose sum is σ = 47044682. Its totient is φ = 47044680.

The previous prime is 47044561. The next prime is 47044691. The reversal of 47044681 is 18644074.

47044681 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., 46785600 + 259081 = 6840^2 + 509^2 .

It is a cyclic number.

It is not a de Polignac number, because 47044681 - 2⁷ = 47044553 is a prime.

It is a super-2 number, since 2×47044681² = 4426404020783522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (47044691) 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, 23522340 + 23522341.

It is an arithmetic number, because the mean of its divisors is an integer number (23522341).

Almost surely, 2^47044681 is an apocalyptic number.

It is an amenable number.

47044681 is a deficient number, since it is larger than the sum of its proper divisors (1).

47044681 is an equidigital number, since it uses as much as digits as its factorization.

47044681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 21504, while the sum is 34.

The square root of 47044681 is about 6858.9125231337. The cubic root of 47044681 is about 360.9969306297.

The spelling of 47044681 in words is "forty-seven million, forty-four thousand, six hundred eighty-one".