547216849 has 2 divisors, whose sum is σ = 547216850. Its totient is φ = 547216848.

The previous prime is 547216843. The next prime is 547216861. The reversal of 547216849 is 948612745.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 392040000 + 155176849 = 19800^2 + 12457^2 .

It is a cyclic number.

It is not a de Polignac number, because 547216849 - 2⁷ = 547216721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 547216799 and 547216808.

It is not a weakly prime, because it can be changed into another prime (547216843) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273608424 + 273608425.

It is an arithmetic number, because the mean of its divisors is an integer number (273608425).

Almost surely, 2^547216849 is an apocalyptic number.

It is an amenable number.

547216849 is a deficient number, since it is larger than the sum of its proper divisors (1).

547216849 is an equidigital number, since it uses as much as digits as its factorization.

547216849 is an evil number, because the sum of its binary digits is even.

The product of its digits is 483840, while the sum is 46.

The square root of 547216849 is about 23392.6665645454. Note that the first 3 decimals coincide. The cubic root of 547216849 is about 817.9369360739.

The spelling of 547216849 in words is "five hundred forty-seven million, two hundred sixteen thousand, eight hundred forty-nine".