38653393 has 4 divisors (see below), whose sum is σ = 40927140. Its totient is φ = 36379648.

The previous prime is 38653387. The next prime is 38653397. The reversal of 38653393 is 39335683.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 29844369 + 8809024 = 5463^2 + 2968^2 .

It is a cyclic number.

It is not a de Polignac number, because 38653393 - 2⁹ = 38652881 is a prime.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38653397) 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, 1136848 + ... + 1136881.

It is an arithmetic number, because the mean of its divisors is an integer number (10231785).

Almost surely, 2^38653393 is an apocalyptic number.

It is an amenable number.

38653393 is a deficient number, since it is larger than the sum of its proper divisors (2273747).

38653393 is a wasteful number, since it uses less digits than its factorization.

38653393 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2273746.

The product of its digits is 174960, while the sum is 40.

The square root of 38653393 is about 6217.1852956141. The cubic root of 38653393 is about 338.1135229003.

The spelling of 38653393 in words is "thirty-eight million, six hundred fifty-three thousand, three hundred ninety-three".