538472929 has 4 divisors (see below), whose sum is σ = 538522884. Its totient is φ = 538422976.

The previous prime is 538472923. The next prime is 538472933. The reversal of 538472929 is 929274835.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 504227025 + 34245904 = 22455^2 + 5852^2 .

It is a cyclic number.

It is not a de Polignac number, because 538472929 - 2⁵ = 538472897 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (538472923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1372 + ... + 32845.

It is an arithmetic number, because the mean of its divisors is an integer number (134630721).

Almost surely, 2^538472929 is an apocalyptic number.

It is an amenable number.

538472929 is a deficient number, since it is larger than the sum of its proper divisors (49955).

538472929 is a wasteful number, since it uses less digits than its factorization.

538472929 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49954.

The product of its digits is 1088640, while the sum is 49.

The square root of 538472929 is about 23205.0194785525. The cubic root of 538472929 is about 813.5569475887.

The spelling of 538472929 in words is "five hundred thirty-eight million, four hundred seventy-two thousand, nine hundred twenty-nine".