646107 has 16 divisors (see below), whose sum is σ = 1074432. Its totient is φ = 335520.

The previous prime is 646103. The next prime is 646147. The reversal of 646107 is 701646.

It is not a de Polignac number, because 646107 - 2² = 646103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (646103) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1168 + ... + 1629.

It is an arithmetic number, because the mean of its divisors is an integer number (67152).

2⁶⁴⁶¹⁰⁷ is an apocalyptic number.

646107 is a deficient number, since it is larger than the sum of its proper divisors (428325).

646107 is a wasteful number, since it uses less digits than its factorization.

646107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2818.

The product of its (nonzero) digits is 1008, while the sum is 24.

The square root of 646107 is about 803.8078128508. The cubic root of 646107 is about 86.4506272643.

The spelling of 646107 in words is "six hundred forty-six thousand, one hundred seven".