47728049 has 2 divisors, whose sum is σ = 47728050. Its totient is φ = 47728048.

The previous prime is 47728001. The next prime is 47728063. The reversal of 47728049 is 94082774.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26337424 + 21390625 = 5132^2 + 4625^2 .

It is a cyclic number.

It is not a de Polignac number, because 47728049 - 2⁸ = 47727793 is a prime.

It is a super-2 number, since 2×47728049² = 4555933322692802, which contains 22 as substring.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 47727997 and 47728015.

It is not a weakly prime, because it can be changed into another prime (47728069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 23864024 + 23864025.

It is an arithmetic number, because the mean of its divisors is an integer number (23864025).

Almost surely, 2^47728049 is an apocalyptic number.

It is an amenable number.

47728049 is a deficient number, since it is larger than the sum of its proper divisors (1).

47728049 is an equidigital number, since it uses as much as digits as its factorization.

47728049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112896, while the sum is 41.

The square root of 47728049 is about 6908.5489793444. The cubic root of 47728049 is about 362.7364741625.

It can be divided in two parts, 4772 and 8049, that added together give a palindrome (12821).

The spelling of 47728049 in words is "forty-seven million, seven hundred twenty-eight thousand, forty-nine".