646116 has 24 divisors (see below), whose sum is σ = 1573824. Its totient is φ = 205920.

The previous prime is 646103. The next prime is 646147. The reversal of 646116 is 611646.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 895 + ... + 1446.

It is an arithmetic number, because the mean of its divisors is an integer number (65576).

2⁶⁴⁶¹¹⁶ is an apocalyptic number.

It is an amenable number.

646116 is an abundant number, since it is smaller than the sum of its proper divisors (927708).

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

646116 is a wasteful number, since it uses less digits than its factorization.

646116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2371 (or 2369 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 646116 is about 803.8134111845. The cubic root of 646116 is about 86.4510286695.

The spelling of 646116 in words is "six hundred forty-six thousand, one hundred sixteen".