938684 has 12 divisors (see below), whose sum is σ = 1677984. Its totient is φ = 459264.

The previous prime is 938681. The next prime is 938713. The reversal of 938684 is 486839.

It is a super-2 number, since 2×938684² = 1762255303712, which contains 22 as substring.

It is a hoax number, since the sum of its digits (38) coincides with the sum of the digits of its distinct prime factors.

It is an Ulam number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (938681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2309 + ... + 2684.

It is an arithmetic number, because the mean of its divisors is an integer number (139832).

2⁹³⁸⁶⁸⁴ is an apocalyptic number.

938684 is a gapful number since it is divisible by the number (94) formed by its first and last digit.

It is an amenable number.

938684 is a deficient number, since it is larger than the sum of its proper divisors (739300).

938684 is a wasteful number, since it uses less digits than its factorization.

938684 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5044 (or 5042 counting only the distinct ones).

The product of its digits is 41472, while the sum is 38.

The square root of 938684 is about 968.8570586005. The cubic root of 938684 is about 97.9128755033.

The spelling of 938684 in words is "nine hundred thirty-eight thousand, six hundred eighty-four".