39648895 has 32 divisors (see below), whose sum is σ = 58351104. Its totient is φ = 25449600.

The previous prime is 39648883. The next prime is 39648899. The reversal of 39648895 is 59884693.

It is a happy number.

It is not a de Polignac number, because 39648895 - 2¹¹ = 39646847 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 (39648899) 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 31 ways as a sum of consecutive naturals, for example, 15240 + ... + 17650.

It is an arithmetic number, because the mean of its divisors is an integer number (1823472).

Almost surely, 2^39648895 is an apocalyptic number.

39648895 is a deficient number, since it is larger than the sum of its proper divisors (18702209).

39648895 is a wasteful number, since it uses less digits than its factorization.

39648895 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2463.

The product of its digits is 1866240, while the sum is 52.

The square root of 39648895 is about 6296.7368533233. The cubic root of 39648895 is about 340.9916120662.

The spelling of 39648895 in words is "thirty-nine million, six hundred forty-eight thousand, eight hundred ninety-five".