38958621 has 16 divisors (see below), whose sum is σ = 56259840. Its totient is φ = 23837760.

The previous prime is 38958589. The next prime is 38958631. The reversal of 38958621 is 12685983.

38958621 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 38958621 - 2⁵ = 38958589 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38958631) 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 15 ways as a sum of consecutive naturals, for example, 4300 + ... + 9818.

It is an arithmetic number, because the mean of its divisors is an integer number (3516240).

Almost surely, 2^38958621 is an apocalyptic number.

It is an amenable number.

38958621 is a deficient number, since it is larger than the sum of its proper divisors (17301219).

38958621 is a wasteful number, since it uses less digits than its factorization.

38958621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5716.

The product of its digits is 103680, while the sum is 42.

The square root of 38958621 is about 6241.6841477281. The cubic root of 38958621 is about 339.0011660144.

The spelling of 38958621 in words is "thirty-eight million, nine hundred fifty-eight thousand, six hundred twenty-one".