39648775 has 12 divisors (see below), whose sum is σ = 49329432. Its totient is φ = 31612640.

The previous prime is 39648761. The next prime is 39648883. The reversal of 39648775 is 57784693.

It is a happy number.

It is not a de Polignac number, because 39648775 - 2⁷ = 39648647 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5424 + ... + 10426.

It is an arithmetic number, because the mean of its divisors is an integer number (4110786).

Almost surely, 2^39648775 is an apocalyptic number.

39648775 is a deficient number, since it is larger than the sum of its proper divisors (9680657).

39648775 is a wasteful number, since it uses less digits than its factorization.

39648775 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5330 (or 5325 counting only the distinct ones).

The product of its digits is 1270080, while the sum is 49.

The square root of 39648775 is about 6296.7273245711. The cubic root of 39648775 is about 340.9912680547.

The spelling of 39648775 in words is "thirty-nine million, six hundred forty-eight thousand, seven hundred seventy-five".