646094 has 8 divisors (see below), whose sum is σ = 995448. Its totient is φ = 314280.

The previous prime is 646073. The next prime is 646099. The reversal of 646094 is 490646.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (646099) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4292 + ... + 4439.

It is an arithmetic number, because the mean of its divisors is an integer number (124431).

2⁶⁴⁶⁰⁹⁴ is an apocalyptic number.

646094 is a deficient number, since it is larger than the sum of its proper divisors (349354).

646094 is a wasteful number, since it uses less digits than its factorization.

646094 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8770.

The product of its (nonzero) digits is 5184, while the sum is 29.

The square root of 646094 is about 803.7997263000. The cubic root of 646094 is about 86.4500474503.

The spelling of 646094 in words is "six hundred forty-six thousand, ninety-four".