39648959 has 8 divisors (see below), whose sum is σ = 45542400. Its totient is φ = 33812856.

The previous prime is 39648901. The next prime is 39648971. The reversal of 39648959 is 95984693.

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

It is a de Polignac number, because none of the positive numbers 2^k-39648959 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 39648959.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39648989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12839 + ... + 15624.

It is an arithmetic number, because the mean of its divisors is an integer number (5692800).

Almost surely, 2^39648959 is an apocalyptic number.

39648959 is a deficient number, since it is larger than the sum of its proper divisors (5893441).

39648959 is a wasteful number, since it uses less digits than its factorization.

39648959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28669.

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

The square root of 39648959 is about 6296.7419353186. The cubic root of 39648959 is about 340.9917955388.

The spelling of 39648959 in words is "thirty-nine million, six hundred forty-eight thousand, nine hundred fifty-nine".