38723693 has 4 divisors (see below), whose sum is σ = 39624288. Its totient is φ = 37823100.

The previous prime is 38723689. The next prime is 38723701. The reversal of 38723693 is 39632783.

38723693 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 38723693 - 2² = 38723689 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 38723693.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38728693) 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, 450233 + ... + 450318.

It is an arithmetic number, because the mean of its divisors is an integer number (9906072).

Almost surely, 2^38723693 is an apocalyptic number.

It is an amenable number.

38723693 is a deficient number, since it is larger than the sum of its proper divisors (900595).

38723693 is an equidigital number, since it uses as much as digits as its factorization.

38723693 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 900594.

The product of its digits is 163296, while the sum is 41.

The square root of 38723693 is about 6222.8364111553. The cubic root of 38723693 is about 338.3183775788.

The spelling of 38723693 in words is "thirty-eight million, seven hundred twenty-three thousand, six hundred ninety-three".