38538697 has 4 divisors (see below), whose sum is σ = 38602180. Its totient is φ = 38475216.

The previous prime is 38538683. The next prime is 38538713. The reversal of 38538697 is 79683583.

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 2105401 + 36433296 = 1451^2 + 6036^2 .

It is a cyclic number.

It is not a de Polignac number, because 38538697 - 2⁷ = 38538569 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 38538697.

It is not an unprimeable number, because it can be changed into a prime (38538607) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30822 + ... + 32047.

It is an arithmetic number, because the mean of its divisors is an integer number (9650545).

Almost surely, 2^38538697 is an apocalyptic number.

It is an amenable number.

38538697 is a deficient number, since it is larger than the sum of its proper divisors (63483).

38538697 is an equidigital number, since it uses as much as digits as its factorization.

38538697 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63482.

The product of its digits is 1088640, while the sum is 49.

The square root of 38538697 is about 6207.9543329506. The cubic root of 38538697 is about 337.7787641080.

The spelling of 38538697 in words is "thirty-eight million, five hundred thirty-eight thousand, six hundred ninety-seven".