38897515 has 8 divisors (see below), whose sum is σ = 46722528. Its totient is φ = 31087680.

The previous prime is 38897491. The next prime is 38897519. The reversal of 38897515 is 51579883.

38897515 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 38897515 - 2⁵ = 38897483 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38897519) 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, 2935 + ... + 9295.

It is an arithmetic number, because the mean of its divisors is an integer number (5840316).

Almost surely, 2^38897515 is an apocalyptic number.

38897515 is a deficient number, since it is larger than the sum of its proper divisors (7825013).

38897515 is a wasteful number, since it uses less digits than its factorization.

38897515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7589.

The product of its digits is 302400, while the sum is 46.

The square root of 38897515 is about 6236.7872338248. The cubic root of 38897515 is about 338.8238338899.

It can be divided in two parts, 388 and 97515, that added together give a triangular number (97903 = T₄₄₂).

The spelling of 38897515 in words is "thirty-eight million, eight hundred ninety-seven thousand, five hundred fifteen".