38820655 has 4 divisors (see below), whose sum is σ = 46584792. Its totient is φ = 31056520.

The previous prime is 38820611. The next prime is 38820689. The reversal of 38820655 is 55602883.

38820655 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 not a de Polignac number, because 38820655 - 2¹¹ = 38818607 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 3882061 + ... + 3882070.

It is an arithmetic number, because the mean of its divisors is an integer number (11646198).

Almost surely, 2^38820655 is an apocalyptic number.

38820655 is a deficient number, since it is larger than the sum of its proper divisors (7764137).

38820655 is an equidigital number, since it uses as much as digits as its factorization.

38820655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7764136.

The product of its (nonzero) digits is 57600, while the sum is 37.

The square root of 38820655 is about 6230.6223605672. The cubic root of 38820655 is about 338.6005190981.

The spelling of 38820655 in words is "thirty-eight million, eight hundred twenty thousand, six hundred fifty-five".