664962 has 24 divisors (see below), whose sum is σ = 1408176. Its totient is φ = 209304.

The previous prime is 664949. The next prime is 664967. The reversal of 664962 is 269466.

It is a super-2 number, since 2×664962² = 884348922888, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (664967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2013 + ... + 2319.

It is an arithmetic number, because the mean of its divisors is an integer number (58674).

2⁶⁶⁴⁹⁶² is an apocalyptic number.

664962 is an abundant number, since it is smaller than the sum of its proper divisors (743214).

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

664962 is a wasteful number, since it uses less digits than its factorization.

664962 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 350 (or 331 counting only the distinct ones).

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

The square root of 664962 is about 815.4520218872. The cubic root of 664962 is about 87.2835247452.

The spelling of 664962 in words is "six hundred sixty-four thousand, nine hundred sixty-two".