938664 has 24 divisors (see below), whose sum is σ = 2542410. Its totient is φ = 312864.

The previous prime is 938659. The next prime is 938677. The reversal of 938664 is 466839.

It can be written as a sum of positive squares in only one way, i.e., 736164 + 202500 = 858^2 + 450^2 .

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

938664 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6447 + ... + 6590.

2⁹³⁸⁶⁶⁴ is an apocalyptic number.

It is an amenable number.

938664 is an abundant number, since it is smaller than the sum of its proper divisors (1603746).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

938664 is a wasteful number, since it uses less digits than its factorization.

938664 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13049 (or 13042 counting only the distinct ones).

The product of its digits is 31104, while the sum is 36.

The square root of 938664 is about 968.8467371055. The cubic root of 938664 is about 97.9121801073.

The spelling of 938664 in words is "nine hundred thirty-eight thousand, six hundred sixty-four".