549729747 has 40 divisors (see below), whose sum is σ = 940493312. Its totient is φ = 313470000.

The previous prime is 549729721. The next prime is 549729767. The reversal of 549729747 is 747927945.

549729747 is a `hidden beast` number, since 549 + 7 + 2 + 97 + 4 + 7 = 666.

It is not a de Polignac number, because 549729747 - 2¹⁰ = 549728723 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 549729693 and 549729702.

It is not an unprimeable number, because it can be changed into a prime (549729767) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 425172 + ... + 426462.

Almost surely, 2^549729747 is an apocalyptic number.

549729747 is a deficient number, since it is larger than the sum of its proper divisors (390763565).

549729747 is a wasteful number, since it uses less digits than its factorization.

549729747 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2061 (or 2052 counting only the distinct ones).

The product of its digits is 4445280, while the sum is 54.

The square root of 549729747 is about 23446.3162778292. The cubic root of 549729747 is about 819.1870522320.

The spelling of 549729747 in words is "five hundred forty-nine million, seven hundred twenty-nine thousand, seven hundred forty-seven".