38820715 has 8 divisors (see below), whose sum is σ = 46725120. Its totient is φ = 30963072.

The previous prime is 38820713. The next prime is 38820739. The reversal of 38820715 is 51702883.

38820715 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 a cyclic number.

It is not a de Polignac number, because 38820715 - 2¹ = 38820713 is a prime.

It is a super-2 number, since 2×38820715² = 3014095826222450, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (38820713) 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, 9835 + ... + 13204.

It is an arithmetic number, because the mean of its divisors is an integer number (5840640).

Almost surely, 2^38820715 is an apocalyptic number.

38820715 is a deficient number, since it is larger than the sum of its proper divisors (7904405).

38820715 is a wasteful number, since it uses less digits than its factorization.

38820715 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23381.

The product of its (nonzero) digits is 13440, while the sum is 34.

The square root of 38820715 is about 6230.6271754937. The cubic root of 38820715 is about 338.6006935415.

The spelling of 38820715 in words is "thirty-eight million, eight hundred twenty thousand, seven hundred fifteen".