547438669 has 2 divisors, whose sum is σ = 547438670. Its totient is φ = 547438668.

The previous prime is 547438649. The next prime is 547438673. The reversal of 547438669 is 966834745.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 543589225 + 3849444 = 23315^2 + 1962^2 .

It is a cyclic number.

It is not a de Polignac number, because 547438669 - 2¹¹ = 547436621 is a prime.

It is a super-2 number, since 2×547438669² = 599378192632983122, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (547438649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273719334 + 273719335.

It is an arithmetic number, because the mean of its divisors is an integer number (273719335).

Almost surely, 2^547438669 is an apocalyptic number.

It is an amenable number.

547438669 is a deficient number, since it is larger than the sum of its proper divisors (1).

547438669 is an equidigital number, since it uses as much as digits as its factorization.

547438669 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4354560, while the sum is 52.

The square root of 547438669 is about 23397.4073136320. The cubic root of 547438669 is about 818.0474408714.

The spelling of 547438669 in words is "five hundred forty-seven million, four hundred thirty-eight thousand, six hundred sixty-nine".