38397793 has 4 divisors (see below), whose sum is σ = 43883200. Its totient is φ = 32912388.

The previous prime is 38397791. The next prime is 38397817. The reversal of 38397793 is 39779383.

38397793 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 38397793 - 2¹ = 38397791 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38397791) 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 3 ways as a sum of consecutive naturals, for example, 2742693 + ... + 2742706.

It is an arithmetic number, because the mean of its divisors is an integer number (10970800).

Almost surely, 2^38397793 is an apocalyptic number.

It is an amenable number.

38397793 is a deficient number, since it is larger than the sum of its proper divisors (5485407).

38397793 is an equidigital number, since it uses as much as digits as its factorization.

38397793 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5485406.

The product of its digits is 857304, while the sum is 49.

The square root of 38397793 is about 6196.5952748263. The cubic root of 38397793 is about 337.3666026084.

The spelling of 38397793 in words is "thirty-eight million, three hundred ninety-seven thousand, seven hundred ninety-three".