38693453 has 8 divisors (see below), whose sum is σ = 41110680. Its totient is φ = 36348480.

The previous prime is 38693449. The next prime is 38693461. The reversal of 38693453 is 35439683.

38693453 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 9132484 + 29560969 = 3022^2 + 5437^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 38693453 - 2² = 38693449 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 38693453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38693423) 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, 16958 + ... + 19103.

It is an arithmetic number, because the mean of its divisors is an integer number (5138835).

Almost surely, 2^38693453 is an apocalyptic number.

It is an amenable number.

38693453 is a deficient number, since it is larger than the sum of its proper divisors (2417227).

38693453 is a wasteful number, since it uses less digits than its factorization.

38693453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36127.

The product of its digits is 233280, while the sum is 41.

The square root of 38693453 is about 6220.4061764486. The cubic root of 38693453 is about 338.2302884253.

It can be divided in two parts, 386 and 93453, that added together give a palindrome (93839).

The spelling of 38693453 in words is "thirty-eight million, six hundred ninety-three thousand, four hundred fifty-three".