38857893 has 4 divisors (see below), whose sum is σ = 51810528. Its totient is φ = 25905260.

The previous prime is 38857891. The next prime is 38857913. The reversal of 38857893 is 39875883.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 38857893 - 2¹ = 38857891 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38857891) 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, 6476313 + ... + 6476318.

It is an arithmetic number, because the mean of its divisors is an integer number (12952632).

Almost surely, 2^38857893 is an apocalyptic number.

It is an amenable number.

38857893 is a deficient number, since it is larger than the sum of its proper divisors (12952635).

38857893 is a wasteful number, since it uses less digits than its factorization.

38857893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12952634.

The product of its digits is 1451520, while the sum is 51.

The square root of 38857893 is about 6233.6099492990. The cubic root of 38857893 is about 338.7087499414.

The spelling of 38857893 in words is "thirty-eight million, eight hundred fifty-seven thousand, eight hundred ninety-three".