38984643 has 12 divisors (see below), whose sum is σ = 57833568. Its totient is φ = 25287120.

The previous prime is 38984633. The next prime is 38984651. The reversal of 38984643 is 34648983.

It is not a de Polignac number, because 38984643 - 2⁵ = 38984611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (38984623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 58203 + ... + 58868.

It is an arithmetic number, because the mean of its divisors is an integer number (4819464).

Almost surely, 2^38984643 is an apocalyptic number.

38984643 is a deficient number, since it is larger than the sum of its proper divisors (18848925).

38984643 is a wasteful number, since it uses less digits than its factorization.

38984643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 117114 (or 117111 counting only the distinct ones).

The product of its digits is 497664, while the sum is 45.

The square root of 38984643 is about 6243.7683333064. The cubic root of 38984643 is about 339.0766266336.

The spelling of 38984643 in words is "thirty-eight million, nine hundred eighty-four thousand, six hundred forty-three".