39000649 has 4 divisors (see below), whose sum is σ = 39014164. Its totient is φ = 38987136.

The previous prime is 39000629. The next prime is 39000653. The reversal of 39000649 is 94600093.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 94600093 = 7 ⋅13514299.

It can be written as a sum of positive squares in 2 ways, for example, as 36542025 + 2458624 = 6045^2 + 1568^2 .

It is a cyclic number.

It is not a de Polignac number, because 39000649 - 2¹¹ = 38998601 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 39000649.

It is not an unprimeable number, because it can be changed into a prime (39000629) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 492 + ... + 8845.

It is an arithmetic number, because the mean of its divisors is an integer number (9753541).

Almost surely, 2^39000649 is an apocalyptic number.

It is an amenable number.

39000649 is a deficient number, since it is larger than the sum of its proper divisors (13515).

39000649 is an equidigital number, since it uses as much as digits as its factorization.

39000649 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13514.

The product of its (nonzero) digits is 5832, while the sum is 31.

The square root of 39000649 is about 6245.0499597681. The cubic root of 39000649 is about 339.1230253989.

The spelling of 39000649 in words is "thirty-nine million, six hundred forty-nine", and thus it is an aban number.