38820079 has 4 divisors (see below), whose sum is σ = 39220384. Its totient is φ = 38419776.

The previous prime is 38820049. The next prime is 38820083. The reversal of 38820079 is 97002883.

38820079 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 is a cyclic number.

It is not a de Polignac number, because 38820079 - 2¹⁹ = 38295791 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 (38820049) 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, 200007 + ... + 200200.

It is an arithmetic number, because the mean of its divisors is an integer number (9805096).

Almost surely, 2^38820079 is an apocalyptic number.

38820079 is a deficient number, since it is larger than the sum of its proper divisors (400305).

38820079 is an equidigital number, since it uses as much as digits as its factorization.

38820079 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400304.

The product of its (nonzero) digits is 24192, while the sum is 37.

The square root of 38820079 is about 6230.5761370840. The cubic root of 38820079 is about 338.5988444323.

The spelling of 38820079 in words is "thirty-eight million, eight hundred twenty thousand, seventy-nine".