646702 has 12 divisors (see below), whose sum is σ = 1128600. Its totient is φ = 277116.

The previous prime is 646687. The next prime is 646721. The reversal of 646702 is 207646.

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 646702.

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, 3202 + ... + 3397.

It is an arithmetic number, because the mean of its divisors is an integer number (94050).

2⁶⁴⁶⁷⁰² is an apocalyptic number.

646702 is a deficient number, since it is larger than the sum of its proper divisors (481898).

646702 is a wasteful number, since it uses less digits than its factorization.

646702 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6615 (or 6608 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 646702 is about 804.1778410277. The cubic root of 646702 is about 86.4771565861.

The spelling of 646702 in words is "six hundred forty-six thousand, seven hundred two".