39489965 has 8 divisors (see below), whose sum is σ = 49448448. Its totient is φ = 30218320.

The previous prime is 39489949. The next prime is 39489971. The reversal of 39489965 is 56998493.

39489965 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 39489965 - 2⁴ = 39489949 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 171581 + ... + 171810.

It is an arithmetic number, because the mean of its divisors is an integer number (6181056).

Almost surely, 2^39489965 is an apocalyptic number.

It is an amenable number.

39489965 is a deficient number, since it is larger than the sum of its proper divisors (9958483).

39489965 is a wasteful number, since it uses less digits than its factorization.

39489965 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 343419.

The product of its digits is 2099520, while the sum is 53.

The square root of 39489965 is about 6284.1041525423. The cubic root of 39489965 is about 340.5353877557.

The spelling of 39489965 in words is "thirty-nine million, four hundred eighty-nine thousand, nine hundred sixty-five".