38539069 has 4 divisors (see below), whose sum is σ = 38552220. Its totient is φ = 38525920.

The previous prime is 38539043. The next prime is 38539073. The reversal of 38539069 is 96093583.

38539069 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 4782969 + 33756100 = 2187^2 + 5810^2 .

It is a cyclic number.

It is not a de Polignac number, because 38539069 - 2⁹ = 38538557 is a prime.

It is a super-2 number, since 2×38539069² = 2970519678773522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38539019) 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 3 ways as a sum of consecutive naturals, for example, 39 + ... + 8779.

It is an arithmetic number, because the mean of its divisors is an integer number (9638055).

Almost surely, 2^38539069 is an apocalyptic number.

It is an amenable number.

38539069 is a deficient number, since it is larger than the sum of its proper divisors (13151).

38539069 is an equidigital number, since it uses as much as digits as its factorization.

38539069 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13150.

The product of its (nonzero) digits is 174960, while the sum is 43.

The square root of 38539069 is about 6207.9842944389. The cubic root of 38539069 is about 337.7798509230.

The spelling of 38539069 in words is "thirty-eight million, five hundred thirty-nine thousand, sixty-nine".