66392 has 16 divisors (see below), whose sum is σ = 128040. Its totient is φ = 32256.

The previous prime is 66383. The next prime is 66403. The reversal of 66392 is 29366.

It is a Smith number, since the sum of its digits (26) coincides with the sum of the digits of its prime factors.

It is a d-powerful number, because it can be written as 6² + 6⁶ + 3⁹ + 9 + 2³ .

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 66392.

It is an unprimeable number.

66392 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 3 ways as a sum of consecutive naturals, for example, 248 + ... + 440.

2⁶⁶³⁹² is an apocalyptic number.

It is an amenable number.

66392 is a deficient number, since it is larger than the sum of its proper divisors (61648).

66392 is a wasteful number, since it uses less digits than its factorization.

66392 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 242 (or 238 counting only the distinct ones).

The product of its digits is 1944, while the sum is 26.

The square root of 66392 is about 257.6664510564. Note that the first 3 decimals coincide. The cubic root of 66392 is about 40.4922507147.

Subtracting from 66392 its sum of digits (26), we obtain a palindrome (66366).

The spelling of 66392 in words is "sixty-six thousand, three hundred ninety-two".