662944 has 12 divisors (see below), whose sum is σ = 1305234. Its totient is φ = 331456.

The previous prime is 662941. The next prime is 662947. The reversal of 662944 is 449266.

It is an interprime number because it is at equal distance from previous prime (662941) and next prime (662947).

It can be written as a sum of positive squares in only one way, i.e., 659344 + 3600 = 812^2 + 60^2 .

It is not an unprimeable number, because it can be changed into a prime (662941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10327 + ... + 10390.

2⁶⁶²⁹⁴⁴ is an apocalyptic number.

It is an amenable number.

662944 is a deficient number, since it is larger than the sum of its proper divisors (642290).

662944 is a wasteful number, since it uses less digits than its factorization.

662944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20727 (or 20719 counting only the distinct ones).

The product of its digits is 10368, while the sum is 31.

The square root of 662944 is about 814.2137311542. The cubic root of 662944 is about 87.1951404300.

The spelling of 662944 in words is "six hundred sixty-two thousand, nine hundred forty-four".