39089989 has 4 divisors (see below), whose sum is σ = 39455424. Its totient is φ = 38724556.

The previous prime is 39089971. The next prime is 39090013. The reversal of 39089989 is 98998093.

39089989 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.

It is a cyclic number.

It is not a de Polignac number, because 39089989 - 2⁷ = 39089861 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 (39089969) 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, 182557 + ... + 182770.

It is an arithmetic number, because the mean of its divisors is an integer number (9863856).

Almost surely, 2^39089989 is an apocalyptic number.

It is an amenable number.

39089989 is a deficient number, since it is larger than the sum of its proper divisors (365435).

39089989 is a wasteful number, since it uses less digits than its factorization.

39089989 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 365434.

The product of its (nonzero) digits is 1259712, while the sum is 55.

The square root of 39089989 is about 6252.1987332458. The cubic root of 39089989 is about 339.3817744793.

The spelling of 39089989 in words is "thirty-nine million, eighty-nine thousand, nine hundred eighty-nine".