32039989 has 4 divisors (see below), whose sum is σ = 33433056. Its totient is φ = 30646924.

The previous prime is 32039981. The next prime is 32040007. The reversal of 32039989 is 98993023.

It is a happy number.

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: 98993023 = 17 ⋅5823119.

It is a cyclic number.

It is not a de Polignac number, because 32039989 - 2³ = 32039981 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 (32039981) 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, 696499 + ... + 696544.

It is an arithmetic number, because the mean of its divisors is an integer number (8358264).

Almost surely, 2^32039989 is an apocalyptic number.

It is an amenable number.

32039989 is a deficient number, since it is larger than the sum of its proper divisors (1393067).

32039989 is a wasteful number, since it uses less digits than its factorization.

32039989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1393066.

The product of its (nonzero) digits is 104976, while the sum is 43.

The square root of 32039989 is about 5660.3877075692. The cubic root of 32039989 is about 317.6124023871.

The spelling of 32039989 in words is "thirty-two million, thirty-nine thousand, nine hundred eighty-nine".