38985589 has 4 divisors (see below), whose sum is σ = 38999200. Its totient is φ = 38971980.

The previous prime is 38985559. The next prime is 38985593. The reversal of 38985589 is 98558983.

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 a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 98558983 = 401 ⋅245783.

It is a cyclic number.

It is not a de Polignac number, because 38985589 - 2¹¹ = 38983541 is a prime.

It is a super-2 number, since 2×38985589² = 3039752299353842, 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 (38985509) 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, 657 + ... + 8854.

It is an arithmetic number, because the mean of its divisors is an integer number (9749800).

Almost surely, 2^38985589 is an apocalyptic number.

It is an amenable number.

38985589 is a deficient number, since it is larger than the sum of its proper divisors (13611).

38985589 is an equidigital number, since it uses as much as digits as its factorization.

38985589 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13610.

The product of its digits is 3110400, while the sum is 55.

The square root of 38985589 is about 6243.8440883802. The cubic root of 38985589 is about 339.0793692854.

The spelling of 38985589 in words is "thirty-eight million, nine hundred eighty-five thousand, five hundred eighty-nine".