38826621 has 20 divisors (see below), whose sum is σ = 60003900. Its totient is φ = 24990336.

The previous prime is 38826611. The next prime is 38826629. The reversal of 38826621 is 12662883.

38826621 is a `hidden beast` number, since 3 + 8 + 8 + 26 + 621 = 666.

38826621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 28676025 + 10150596 = 5355^2 + 3186^2 .

It is not a de Polignac number, because 38826621 - 2⁷ = 38826493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38826629) 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 19 ways as a sum of consecutive naturals, for example, 5916 + ... + 10613.

It is an arithmetic number, because the mean of its divisors is an integer number (3000195).

Almost surely, 2^38826621 is an apocalyptic number.

It is an amenable number.

38826621 is a deficient number, since it is larger than the sum of its proper divisors (21177279).

38826621 is a wasteful number, since it uses less digits than its factorization.

38826621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16570 (or 16561 counting only the distinct ones).

The product of its digits is 27648, while the sum is 36.

The square root of 38826621 is about 6231.1011065461. The cubic root of 38826621 is about 338.6178637069.

The spelling of 38826621 in words is "thirty-eight million, eight hundred twenty-six thousand, six hundred twenty-one".