38853893 has 4 divisors (see below), whose sum is σ = 41842668. Its totient is φ = 35865120.

The previous prime is 38853887. The next prime is 38853907. The reversal of 38853893 is 39835883.

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 4255969 + 34597924 = 2063^2 + 5882^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-38853893 is a prime.

It is a super-3 number, since 3×38853893³ (a number of 24 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38853833) 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 3 ways as a sum of consecutive naturals, for example, 1494368 + ... + 1494393.

It is an arithmetic number, because the mean of its divisors is an integer number (10460667).

Almost surely, 2^38853893 is an apocalyptic number.

It is an amenable number.

38853893 is a deficient number, since it is larger than the sum of its proper divisors (2988775).

38853893 is a wasteful number, since it uses less digits than its factorization.

38853893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2988774.

The product of its digits is 622080, while the sum is 47.

The square root of 38853893 is about 6233.2890996648. The cubic root of 38853893 is about 338.6971274079.

The spelling of 38853893 in words is "thirty-eight million, eight hundred fifty-three thousand, eight hundred ninety-three".