38534989 has 4 divisors (see below), whose sum is σ = 38553120. Its totient is φ = 38516860.

The previous prime is 38534963. The next prime is 38534999. The reversal of 38534989 is 98943583.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98943583 = 19 ⋅5207557.

It is a cyclic number.

It is not a de Polignac number, because 38534989 - 2¹¹ = 38532941 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38534999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5377 + ... + 10294.

It is an arithmetic number, because the mean of its divisors is an integer number (9638280).

Almost surely, 2^38534989 is an apocalyptic number.

It is an amenable number.

38534989 is a deficient number, since it is larger than the sum of its proper divisors (18131).

38534989 is a wasteful number, since it uses less digits than its factorization.

38534989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18130.

The product of its digits is 933120, while the sum is 49.

The square root of 38534989 is about 6207.6556766625. The cubic root of 38534989 is about 337.7679306348.

The spelling of 38534989 in words is "thirty-eight million, five hundred thirty-four thousand, nine hundred eighty-nine".