38609705 has 12 divisors (see below), whose sum is σ = 47239500. Its totient is φ = 30293952.

The previous prime is 38609699. The next prime is 38609707. The reversal of 38609705 is 50790683.

It can be written as a sum of positive squares in 6 ways, for example, as 132496 + 38477209 = 364^2 + 6203^2 .

It is not a de Polignac number, because 38609705 - 2⁴ = 38609689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (38609707) 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 11 ways as a sum of consecutive naturals, for example, 12671 + ... + 15419.

It is an arithmetic number, because the mean of its divisors is an integer number (3936625).

Almost surely, 2^38609705 is an apocalyptic number.

It is an amenable number.

38609705 is a deficient number, since it is larger than the sum of its proper divisors (8629795).

38609705 is an equidigital number, since it uses as much as digits as its factorization.

38609705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2860 (or 2807 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 38.

The square root of 38609705 is about 6213.6708152267. The cubic root of 38609705 is about 337.9860906009.

The spelling of 38609705 in words is "thirty-eight million, six hundred nine thousand, seven hundred five".