38109893 has 4 divisors (see below), whose sum is σ = 38301600. Its totient is φ = 37918188.

The previous prime is 38109871. The next prime is 38109899. The reversal of 38109893 is 39890183.

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 38109893 - 2⁶ = 38109829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 38109893.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38109899) 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, 95555 + ... + 95952.

It is an arithmetic number, because the mean of its divisors is an integer number (9575400).

Almost surely, 2^38109893 is an apocalyptic number.

It is an amenable number.

38109893 is a deficient number, since it is larger than the sum of its proper divisors (191707).

38109893 is a wasteful number, since it uses less digits than its factorization.

38109893 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191706.

The product of its (nonzero) digits is 46656, while the sum is 41.

The square root of 38109893 is about 6173.3210673024. The cubic root of 38109893 is about 336.5213143528.

The spelling of 38109893 in words is "thirty-eight million, one hundred nine thousand, eight hundred ninety-three".