38947453 has 4 divisors (see below), whose sum is σ = 38961468. Its totient is φ = 38933440.

The previous prime is 38947451. The next prime is 38947457. The reversal of 38947453 is 35474983.

38947453 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.

It can be written as a sum of positive squares in 2 ways, for example, as 31775769 + 7171684 = 5637^2 + 2678^2 .

It is a cyclic number.

It is not a de Polignac number, because 38947453 - 2¹ = 38947451 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38947451) 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, 1276 + ... + 8917.

It is an arithmetic number, because the mean of its divisors is an integer number (9740367).

Almost surely, 2^38947453 is an apocalyptic number.

It is an amenable number.

38947453 is a deficient number, since it is larger than the sum of its proper divisors (14015).

38947453 is a wasteful number, since it uses less digits than its factorization.

38947453 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14014.

The product of its digits is 362880, while the sum is 43.

The square root of 38947453 is about 6240.7894532663. The cubic root of 38947453 is about 338.9687698742.

The spelling of 38947453 in words is "thirty-eight million, nine hundred forty-seven thousand, four hundred fifty-three".