38713243 has 4 divisors (see below), whose sum is σ = 38853280. Its totient is φ = 38573208.

The previous prime is 38713193. The next prime is 38713249. The reversal of 38713243 is 34231783.

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 38713243 - 2⁹ = 38712731 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38713249) 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, 69603 + ... + 70156.

It is an arithmetic number, because the mean of its divisors is an integer number (9713320).

Almost surely, 2^38713243 is an apocalyptic number.

38713243 is a deficient number, since it is larger than the sum of its proper divisors (140037).

38713243 is a wasteful number, since it uses less digits than its factorization.

38713243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140036.

The product of its digits is 12096, while the sum is 31.

The square root of 38713243 is about 6221.9967052386. The cubic root of 38713243 is about 338.2879419046.

The spelling of 38713243 in words is "thirty-eight million, seven hundred thirteen thousand, two hundred forty-three".