648662 has 12 divisors (see below), whose sum is σ = 1132020. Its totient is φ = 277956.

The previous prime is 648653. The next prime is 648671. The reversal of 648662 is 266846.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (648653) and next prime (648671).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3212 + ... + 3407.

It is an arithmetic number, because the mean of its divisors is an integer number (94335).

2⁶⁴⁸⁶⁶² is an apocalyptic number.

648662 is a deficient number, since it is larger than the sum of its proper divisors (483358).

648662 is a wasteful number, since it uses less digits than its factorization.

648662 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6635 (or 6628 counting only the distinct ones).

The product of its digits is 13824, while the sum is 32.

The square root of 648662 is about 805.3955549915. The cubic root of 648662 is about 86.5644323749.

The spelling of 648662 in words is "six hundred forty-eight thousand, six hundred sixty-two".