38764921 has 8 divisors (see below), whose sum is σ = 43944320. Its totient is φ = 33899472.

The previous prime is 38764907. The next prime is 38764933. The reversal of 38764921 is 12946783.

38764921 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 38764921 - 2¹⁵ = 38732153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38764961) 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, 78225 + ... + 78718.

It is an arithmetic number, because the mean of its divisors is an integer number (5493040).

Almost surely, 2^38764921 is an apocalyptic number.

It is an amenable number.

38764921 is a deficient number, since it is larger than the sum of its proper divisors (5179399).

38764921 is a wasteful number, since it uses less digits than its factorization.

38764921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156975.

The product of its digits is 72576, while the sum is 40.

The square root of 38764921 is about 6226.1481672058. The cubic root of 38764921 is about 338.4384009361.

The spelling of 38764921 in words is "thirty-eight million, seven hundred sixty-four thousand, nine hundred twenty-one".