38705047 has 4 divisors (see below), whose sum is σ = 38764440. Its totient is φ = 38645656.

The previous prime is 38705041. The next prime is 38705059. The reversal of 38705047 is 74050783.

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

It is a cyclic number.

It is not a de Polignac number, because 38705047 - 2²³ = 30316439 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 (38705041) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28708 + ... + 30025.

It is an arithmetic number, because the mean of its divisors is an integer number (9691110).

Almost surely, 2^38705047 is an apocalyptic number.

38705047 is a deficient number, since it is larger than the sum of its proper divisors (59393).

38705047 is an equidigital number, since it uses as much as digits as its factorization.

38705047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59392.

The product of its (nonzero) digits is 23520, while the sum is 34.

The square root of 38705047 is about 6221.3380393610. The cubic root of 38705047 is about 338.2640671833.

The spelling of 38705047 in words is "thirty-eight million, seven hundred five thousand, forty-seven".