39005413 has 4 divisors (see below), whose sum is σ = 39644908. Its totient is φ = 38365920.

The previous prime is 39005399. The next prime is 39005443. The reversal of 39005413 is 31450093.

39005413 is nontrivially palindromic in base 7.

39005413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 850084 + 38155329 = 922^2 + 6177^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-39005413 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 (39005443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 319656 + ... + 319777.

It is an arithmetic number, because the mean of its divisors is an integer number (9911227).

Almost surely, 2^39005413 is an apocalyptic number.

It is an amenable number.

39005413 is a deficient number, since it is larger than the sum of its proper divisors (639495).

39005413 is an equidigital number, since it uses as much as digits as its factorization.

39005413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 639494.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 39005413 is about 6245.4313702097. The cubic root of 39005413 is about 339.1368330009.

The spelling of 39005413 in words is "thirty-nine million, five thousand, four hundred thirteen".