39649107 has 4 divisors (see below), whose sum is σ = 52865480. Its totient is φ = 26432736.

The previous prime is 39649097. The next prime is 39649111. The reversal of 39649107 is 70194693.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70194693 = 3 ⋅23398231.

It is not a de Polignac number, because 39649107 - 2¹⁰ = 39648083 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (39649187) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6608182 + ... + 6608187.

It is an arithmetic number, because the mean of its divisors is an integer number (13216370).

Almost surely, 2^39649107 is an apocalyptic number.

39649107 is a deficient number, since it is larger than the sum of its proper divisors (13216373).

39649107 is a wasteful number, since it uses less digits than its factorization.

39649107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13216372.

The product of its (nonzero) digits is 40824, while the sum is 39.

The square root of 39649107 is about 6296.7536874170. The cubic root of 39649107 is about 340.9922198183.

The spelling of 39649107 in words is "thirty-nine million, six hundred forty-nine thousand, one hundred seven".