47410721 has 2 divisors, whose sum is σ = 47410722. Its totient is φ = 47410720.

The previous prime is 47410667. The next prime is 47410723. The reversal of 47410721 is 12701474.

47410721 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., 42393121 + 5017600 = 6511^2 + 2240^2 .

It is a cyclic number.

It is not a de Polignac number, because 47410721 - 2¹⁰ = 47409697 is a prime.

It is a Sophie Germain prime.

Together with 47410723, it forms a pair of twin primes.

It is a Chen prime.

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

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (47410723) 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, 23705360 + 23705361.

It is an arithmetic number, because the mean of its divisors is an integer number (23705361).

Almost surely, 2^47410721 is an apocalyptic number.

It is an amenable number.

47410721 is a deficient number, since it is larger than the sum of its proper divisors (1).

47410721 is an equidigital number, since it uses as much as digits as its factorization.

47410721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1568, while the sum is 26.

The square root of 47410721 is about 6885.5443503038. The cubic root of 47410721 is about 361.9307810023.

The spelling of 47410721 in words is "forty-seven million, four hundred ten thousand, seven hundred twenty-one".