54728647 has 2 divisors, whose sum is σ = 54728648. Its totient is φ = 54728646.

The previous prime is 54728617. The next prime is 54728689. The reversal of 54728647 is 74682745.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54728647 - 2⁷ = 54728519 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54728617) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27364323 + 27364324.

It is an arithmetic number, because the mean of its divisors is an integer number (27364324).

Almost surely, 2^54728647 is an apocalyptic number.

54728647 is a deficient number, since it is larger than the sum of its proper divisors (1).

54728647 is an equidigital number, since it uses as much as digits as its factorization.

54728647 is an evil number, because the sum of its binary digits is even.

The product of its digits is 376320, while the sum is 43.

The square root of 54728647 is about 7397.8812507366. The cubic root of 54728647 is about 379.6687949723.

The spelling of 54728647 in words is "fifty-four million, seven hundred twenty-eight thousand, six hundred forty-seven".