547977109 has 2 divisors, whose sum is σ = 547977110. Its totient is φ = 547977108.

The previous prime is 547977107. The next prime is 547977137. The reversal of 547977109 is 901779745.

547977109 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 475676100 + 72301009 = 21810^2 + 8503^2 .

It is a cyclic number.

It is not a de Polignac number, because 547977109 - 2¹ = 547977107 is a prime.

Together with 547977107, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (547977107) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273988554 + 273988555.

It is an arithmetic number, because the mean of its divisors is an integer number (273988555).

Almost surely, 2^547977109 is an apocalyptic number.

It is an amenable number.

547977109 is a deficient number, since it is larger than the sum of its proper divisors (1).

547977109 is an equidigital number, since it uses as much as digits as its factorization.

547977109 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 555660, while the sum is 49.

The square root of 547977109 is about 23408.9108888047. The cubic root of 547977109 is about 818.3155531782.

The spelling of 547977109 in words is "five hundred forty-seven million, nine hundred seventy-seven thousand, one hundred nine".