38447005 has 4 divisors (see below), whose sum is σ = 46136412. Its totient is φ = 30757600.

The previous prime is 38446981. The next prime is 38447023. The reversal of 38447005 is 50074483.

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 9308601 + 29138404 = 3051^2 + 5398^2 .

It is not a de Polignac number, because 38447005 - 2¹¹ = 38444957 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 3 ways as a sum of consecutive naturals, for example, 3844696 + ... + 3844705.

It is an arithmetic number, because the mean of its divisors is an integer number (11534103).

Almost surely, 2^38447005 is an apocalyptic number.

It is an amenable number.

38447005 is a deficient number, since it is larger than the sum of its proper divisors (7689407).

38447005 is an equidigital number, since it uses as much as digits as its factorization.

38447005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7689406.

The product of its (nonzero) digits is 13440, while the sum is 31.

The square root of 38447005 is about 6200.5648936206. The cubic root of 38447005 is about 337.5106681584.

The spelling of 38447005 in words is "thirty-eight million, four hundred forty-seven thousand, five".