38619993 has 8 divisors (see below), whose sum is σ = 52199008. Its totient is φ = 25393824.

The previous prime is 38619961. The next prime is 38620003. The reversal of 38619993 is 39991683.

It is a happy number.

38619993 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 38619993 - 2⁵ = 38619961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38619923) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87955 + ... + 88392.

It is an arithmetic number, because the mean of its divisors is an integer number (6524876).

Almost surely, 2^38619993 is an apocalyptic number.

It is an amenable number.

38619993 is a deficient number, since it is larger than the sum of its proper divisors (13579015).

38619993 is a wasteful number, since it uses less digits than its factorization.

38619993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176423.

The product of its digits is 314928, while the sum is 48.

The square root of 38619993 is about 6214.4986121167. The cubic root of 38619993 is about 338.0161080287.

The spelling of 38619993 in words is "thirty-eight million, six hundred nineteen thousand, nine hundred ninety-three".