47728697 has 2 divisors, whose sum is σ = 47728698. Its totient is φ = 47728696.

The previous prime is 47728679. The next prime is 47728711. The reversal of 47728697 is 79682774.

Together with previous prime (47728679) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 47596201 + 132496 = 6899^2 + 364^2 .

It is a cyclic number.

It is not a de Polignac number, because 47728697 - 2⁸ = 47728441 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (47728097) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23864348 + 23864349.

It is an arithmetic number, because the mean of its divisors is an integer number (23864349).

Almost surely, 2^47728697 is an apocalyptic number.

It is an amenable number.

47728697 is a deficient number, since it is larger than the sum of its proper divisors (1).

47728697 is an equidigital number, since it uses as much as digits as its factorization.

47728697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1185408, while the sum is 50.

The square root of 47728697 is about 6908.5958776006. The cubic root of 47728697 is about 362.7381157700.

The spelling of 47728697 in words is "forty-seven million, seven hundred twenty-eight thousand, six hundred ninety-seven".