646962 has 8 divisors (see below), whose sum is σ = 1293936. Its totient is φ = 215652.

The previous prime is 646957. The next prime is 646979. The reversal of 646962 is 269646.

It is a sphenic number, since it is the product of 3 distinct primes.

646962 is an admirable number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 646962.

It is an unprimeable number.

646962 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 3 ways as a sum of consecutive naturals, for example, 53908 + ... + 53919.

It is an arithmetic number, because the mean of its divisors is an integer number (161742).

2⁶⁴⁶⁹⁶² is an apocalyptic number.

646962 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

646962 is a wasteful number, since it uses less digits than its factorization.

646962 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 107832.

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

The square root of 646962 is about 804.3394805678. The cubic root of 646962 is about 86.4887441222.

The spelling of 646962 in words is "six hundred forty-six thousand, nine hundred sixty-two".