47797457 has 2 divisors, whose sum is σ = 47797458. Its totient is φ = 47797456.

The previous prime is 47797433. The next prime is 47797471. The reversal of 47797457 is 75479774.

47797457 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., 42042256 + 5755201 = 6484^2 + 2399^2 .

It is a cyclic number.

It is not a de Polignac number, because 47797457 - 2⁸ = 47797201 is a prime.

It is not a weakly prime, because it can be changed into another prime (47797487) 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, 23898728 + 23898729.

It is an arithmetic number, because the mean of its divisors is an integer number (23898729).

Almost surely, 2^47797457 is an apocalyptic number.

It is an amenable number.

47797457 is a deficient number, since it is larger than the sum of its proper divisors (1).

47797457 is an equidigital number, since it uses as much as digits as its factorization.

47797457 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1728720, while the sum is 50.

The square root of 47797457 is about 6913.5704957713. The cubic root of 47797457 is about 362.9122241963.

The spelling of 47797457 in words is "forty-seven million, seven hundred ninety-seven thousand, four hundred fifty-seven".