646325 has 12 divisors (see below), whose sum is σ = 812448. Its totient is φ = 510000.

The previous prime is 646309. The next prime is 646339. The reversal of 646325 is 523646.

It is not a de Polignac number, because 646325 - 2⁴ = 646309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 646294 and 646303.

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 646325.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2450 + ... + 2700.

It is an arithmetic number, because the mean of its divisors is an integer number (67704).

2⁶⁴⁶³²⁵ is an apocalyptic number.

It is an amenable number.

646325 is a deficient number, since it is larger than the sum of its proper divisors (166123).

646325 is a wasteful number, since it uses less digits than its factorization.

646325 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 364 (or 359 counting only the distinct ones).

The product of its digits is 4320, while the sum is 26.

The square root of 646325 is about 803.9434059684. The cubic root of 646325 is about 86.4603491409.

The spelling of 646325 in words is "six hundred forty-six thousand, three hundred twenty-five".