547739249 has 2 divisors, whose sum is σ = 547739250. Its totient is φ = 547739248.

The previous prime is 547739219. The next prime is 547739251. The reversal of 547739249 is 942937745.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 531994225 + 15745024 = 23065^2 + 3968^2 .

It is a cyclic number.

It is not a de Polignac number, because 547739249 - 2¹⁶ = 547673713 is a prime.

Together with 547739251, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 547739197 and 547739206.

It is not a weakly prime, because it can be changed into another prime (547739209) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273869624 + 273869625.

It is an arithmetic number, because the mean of its divisors is an integer number (273869625).

Almost surely, 2^547739249 is an apocalyptic number.

It is an amenable number.

547739249 is a deficient number, since it is larger than the sum of its proper divisors (1).

547739249 is an equidigital number, since it uses as much as digits as its factorization.

547739249 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1905120, while the sum is 50.

The square root of 547739249 is about 23403.8297934334. The cubic root of 547739249 is about 818.1971341761.

The spelling of 547739249 in words is "five hundred forty-seven million, seven hundred thirty-nine thousand, two hundred forty-nine".