549673589 has 4 divisors (see below), whose sum is σ = 549916224. Its totient is φ = 549430956.

The previous prime is 549673571. The next prime is 549673603. The reversal of 549673589 is 985376945.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-549673589 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549673519) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 117887 + ... + 122460.

It is an arithmetic number, because the mean of its divisors is an integer number (137479056).

Almost surely, 2^549673589 is an apocalyptic number.

It is an amenable number.

549673589 is a deficient number, since it is larger than the sum of its proper divisors (242635).

549673589 is a wasteful number, since it uses less digits than its factorization.

549673589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242634.

The product of its digits is 8164800, while the sum is 56.

The square root of 549673589 is about 23445.1186603950. The cubic root of 549673589 is about 819.1591564200.

The spelling of 549673589 in words is "five hundred forty-nine million, six hundred seventy-three thousand, five hundred eighty-nine".