938643 has 8 divisors (see below), whose sum is σ = 1294800. Its totient is φ = 604128.

The previous prime is 938617. The next prime is 938659. The reversal of 938643 is 346839.

938643 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 not a de Polignac number, because 938643 - 2⁵ = 938611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (938243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5308 + ... + 5481.

It is an arithmetic number, because the mean of its divisors is an integer number (161850).

2⁹³⁸⁶⁴³ is an apocalyptic number.

938643 is a deficient number, since it is larger than the sum of its proper divisors (356157).

938643 is a wasteful number, since it uses less digits than its factorization.

938643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10821.

The product of its digits is 15552, while the sum is 33.

The square root of 938643 is about 968.8358994174. The cubic root of 938643 is about 97.9114499308.

The spelling of 938643 in words is "nine hundred thirty-eight thousand, six hundred forty-three".