47720401 has 2 divisors, whose sum is σ = 47720402. Its totient is φ = 47720400.

The previous prime is 47720363. The next prime is 47720429. The reversal of 47720401 is 10402774.

47720401 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., 26780625 + 20939776 = 5175^2 + 4576^2 .

It is a cyclic number.

It is not a de Polignac number, because 47720401 - 2⁷ = 47720273 is a prime.

It is not a weakly prime, because it can be changed into another prime (47720441) 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, 23860200 + 23860201.

It is an arithmetic number, because the mean of its divisors is an integer number (23860201).

Almost surely, 2^47720401 is an apocalyptic number.

It is an amenable number.

47720401 is a deficient number, since it is larger than the sum of its proper divisors (1).

47720401 is an equidigital number, since it uses as much as digits as its factorization.

47720401 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 25.

The square root of 47720401 is about 6907.9954400680. The cubic root of 47720401 is about 362.7170980178.

The spelling of 47720401 in words is "forty-seven million, seven hundred twenty thousand, four hundred one".