38693489 has 4 divisors (see below), whose sum is σ = 39183360. Its totient is φ = 38203620.

The previous prime is 38693483. The next prime is 38693491. The reversal of 38693489 is 98439683.

38693489 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 Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 98439683 = 67 ⋅1469249.

It is a cyclic number.

It is not a de Polignac number, because 38693489 - 2²⁰ = 37644913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38693483) 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, 244817 + ... + 244974.

It is an arithmetic number, because the mean of its divisors is an integer number (9795840).

Almost surely, 2^38693489 is an apocalyptic number.

It is an amenable number.

38693489 is a deficient number, since it is larger than the sum of its proper divisors (489871).

38693489 is an equidigital number, since it uses as much as digits as its factorization.

38693489 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489870.

The product of its digits is 1119744, while the sum is 50.

The square root of 38693489 is about 6220.4090701496. The cubic root of 38693489 is about 338.2303933206.

The spelling of 38693489 in words is "thirty-eight million, six hundred ninety-three thousand, four hundred eighty-nine".