664362 has 24 divisors (see below), whose sum is σ = 1493856. Its totient is φ = 221292.

The previous prime is 664357. The next prime is 664369. The reversal of 664362 is 263466.

664362 is nontrivially palindromic in base 16.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (664369) by changing a digit.

664362 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 11 ways as a sum of consecutive naturals, for example, 198 + ... + 1169.

It is an arithmetic number, because the mean of its divisors is an integer number (62244).

2⁶⁶⁴³⁶² is an apocalyptic number.

664362 is an abundant number, since it is smaller than the sum of its proper divisors (829494).

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

664362 is a wasteful number, since it uses less digits than its factorization.

664362 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1384 (or 1372 counting only the distinct ones).

The product of its digits is 5184, while the sum is 27.

The square root of 664362 is about 815.0840447463. The cubic root of 664362 is about 87.2572646611.

The spelling of 664362 in words is "six hundred sixty-four thousand, three hundred sixty-two".