547720669 has 2 divisors, whose sum is σ = 547720670. Its totient is φ = 547720668.

The previous prime is 547720631. The next prime is 547720673. The reversal of 547720669 is 966027745.

547720669 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., 276723225 + 270997444 = 16635^2 + 16462^2 .

It is a cyclic number.

It is not a de Polignac number, because 547720669 - 2⁹ = 547720157 is a prime.

It is a super-2 number, since 2×547720669² = 599995862499615122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (547720609) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273860334 + 273860335.

It is an arithmetic number, because the mean of its divisors is an integer number (273860335).

Almost surely, 2^547720669 is an apocalyptic number.

It is an amenable number.

547720669 is a deficient number, since it is larger than the sum of its proper divisors (1).

547720669 is an equidigital number, since it uses as much as digits as its factorization.

547720669 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 635040, while the sum is 46.

The square root of 547720669 is about 23403.4328464864. The cubic root of 547720669 is about 818.1878826483.

The spelling of 547720669 in words is "five hundred forty-seven million, seven hundred twenty thousand, six hundred sixty-nine".