549430487 has 2 divisors, whose sum is σ = 549430488. Its totient is φ = 549430486.

The previous prime is 549430451. The next prime is 549430493. The reversal of 549430487 is 784034945.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 549430487 - 2¹² = 549426391 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549435487) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274715243 + 274715244.

It is an arithmetic number, because the mean of its divisors is an integer number (274715244).

Almost surely, 2^549430487 is an apocalyptic number.

549430487 is a deficient number, since it is larger than the sum of its proper divisors (1).

549430487 is an equidigital number, since it uses as much as digits as its factorization.

549430487 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 483840, while the sum is 44.

The square root of 549430487 is about 23439.9335963223. The cubic root of 549430487 is about 819.0383765014.

The spelling of 549430487 in words is "five hundred forty-nine million, four hundred thirty thousand, four hundred eighty-seven".