547686749 has 2 divisors, whose sum is σ = 547686750. Its totient is φ = 547686748.

The previous prime is 547686709. The next prime is 547686751. The reversal of 547686749 is 947686745.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 414122500 + 133564249 = 20350^2 + 11557^2 .

It is a cyclic number.

It is not a de Polignac number, because 547686749 - 2¹⁶ = 547621213 is a prime.

Together with 547686751, 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 = 547686694 and 547686703.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (547686709) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273843374 + 273843375.

It is an arithmetic number, because the mean of its divisors is an integer number (273843375).

Almost surely, 2^547686749 is an apocalyptic number.

It is an amenable number.

547686749 is a deficient number, since it is larger than the sum of its proper divisors (1).

547686749 is an equidigital number, since it uses as much as digits as its factorization.

547686749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10160640, while the sum is 56.

The square root of 547686749 is about 23402.7081552542. The cubic root of 547686749 is about 818.1709923442.

The spelling of 547686749 in words is "five hundred forty-seven million, six hundred eighty-six thousand, seven hundred forty-nine".