549447764 has 6 divisors (see below), whose sum is σ = 961533594. Its totient is φ = 274723880.

The previous prime is 549447761. The next prime is 549447779. The reversal of 549447764 is 467744945.

549447764 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 488763664 + 60684100 = 22108^2 + 7790^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (549447761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 68680967 + ... + 68680974.

It is an arithmetic number, because the mean of its divisors is an integer number (160255599).

Almost surely, 2^549447764 is an apocalyptic number.

It is an amenable number.

549447764 is a deficient number, since it is larger than the sum of its proper divisors (412085830).

549447764 is a wasteful number, since it uses less digits than its factorization.

549447764 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137361945 (or 137361943 counting only the distinct ones).

The product of its digits is 3386880, while the sum is 50.

The square root of 549447764 is about 23440.3021311586. The cubic root of 549447764 is about 819.0469613774.

The spelling of 549447764 in words is "five hundred forty-nine million, four hundred forty-seven thousand, seven hundred sixty-four".