8554492729 has 4 divisors (see below), whose sum is σ = 8554938084. Its totient is φ = 8554047376.

The previous prime is 8554492693. The next prime is 8554492733. The reversal of 8554492729 is 9272944558.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 9272944558 = 2 ⋅4636472279.

It can be written as a sum of positive squares in 2 ways, for example, as 5123696400 + 3430796329 = 71580^2 + 58573^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-8554492729 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 8554492729.

It is not an unprimeable number, because it can be changed into a prime (8554492789) 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, 192502 + ... + 232735.

It is an arithmetic number, because the mean of its divisors is an integer number (2138734521).

Almost surely, 2^8554492729 is an apocalyptic number.

It is an amenable number.

8554492729 is a deficient number, since it is larger than the sum of its proper divisors (445355).

8554492729 is a wasteful number, since it uses less digits than its factorization.

8554492729 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 445354.

The product of its digits is 7257600, while the sum is 55.

The square root of 8554492729 is about 92490.5007500770. The cubic root of 8554492729 is about 2045.1794510579.

The spelling of 8554492729 in words is "eight billion, five hundred fifty-four million, four hundred ninety-two thousand, seven hundred twenty-nine".