549116729 has 8 divisors (see below), whose sum is σ = 639403200. Its totient is φ = 461790576.

The previous prime is 549116719. The next prime is 549116747. The reversal of 549116729 is 927611945.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 549116729 - 2⁴ = 549116713 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 549116729.

It is not an unprimeable number, because it can be changed into a prime (549116719) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 739679 + ... + 740420.

It is an arithmetic number, because the mean of its divisors is an integer number (79925400).

Almost surely, 2^549116729 is an apocalyptic number.

It is an amenable number.

549116729 is a deficient number, since it is larger than the sum of its proper divisors (90286471).

549116729 is a wasteful number, since it uses less digits than its factorization.

549116729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1480159.

The product of its digits is 136080, while the sum is 44.

The square root of 549116729 is about 23433.2398314872. The cubic root of 549116729 is about 818.8824400171.

The spelling of 549116729 in words is "five hundred forty-nine million, one hundred sixteen thousand, seven hundred twenty-nine".