549804729 has 16 divisors (see below), whose sum is σ = 772992000. Its totient is φ = 346643856.

The previous prime is 549804727. The next prime is 549804733. The reversal of 549804729 is 927408945.

It is not a de Polignac number, because 549804729 - 2¹ = 549804727 is a prime.

It is not an unprimeable number, because it can be changed into a prime (549804721) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26092 + ... + 42194.

It is an arithmetic number, because the mean of its divisors is an integer number (48312000).

Almost surely, 2^549804729 is an apocalyptic number.

It is an amenable number.

549804729 is a deficient number, since it is larger than the sum of its proper divisors (223187271).

549804729 is a wasteful number, since it uses less digits than its factorization.

549804729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16724.

The product of its (nonzero) digits is 725760, while the sum is 48.

The square root of 549804729 is about 23447.9152378202. The cubic root of 549804729 is about 819.2242956784.

The spelling of 549804729 in words is "five hundred forty-nine million, eight hundred four thousand, seven hundred twenty-nine".