549969967 has 2 divisors, whose sum is σ = 549969968. Its totient is φ = 549969966.

The previous prime is 549969943. The next prime is 549970013. The reversal of 549969967 is 769969945.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-549969967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 549969899 and 549969908.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (549969467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 274984983 + 274984984.

It is an arithmetic number, because the mean of its divisors is an integer number (274984984).

Almost surely, 2^549969967 is an apocalyptic number.

549969967 is a deficient number, since it is larger than the sum of its proper divisors (1).

549969967 is an equidigital number, since it uses as much as digits as its factorization.

549969967 is an evil number, because the sum of its binary digits is even.

The product of its digits is 33067440, while the sum is 64.

The square root of 549969967 is about 23451.4384846644. The cubic root of 549969967 is about 819.3063571924.

It can be divided in two parts, 5499 and 69967, that added together give a triangular number (75466 = T₃₈₈).

The spelling of 549969967 in words is "five hundred forty-nine million, nine hundred sixty-nine thousand, nine hundred sixty-seven".