549871739 has 2 divisors, whose sum is σ = 549871740. Its totient is φ = 549871738.

The previous prime is 549871727. The next prime is 549871781. The reversal of 549871739 is 937178945.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 549871739 - 2¹⁶ = 549806203 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (549871709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274935869 + 274935870.

It is an arithmetic number, because the mean of its divisors is an integer number (274935870).

Almost surely, 2^549871739 is an apocalyptic number.

549871739 is a deficient number, since it is larger than the sum of its proper divisors (1).

549871739 is an equidigital number, since it uses as much as digits as its factorization.

549871739 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1905120, while the sum is 53.

The square root of 549871739 is about 23449.3441059659. The cubic root of 549871739 is about 819.2575765792.

The spelling of 549871739 in words is "five hundred forty-nine million, eight hundred seventy-one thousand, seven hundred thirty-nine".