646235 has 8 divisors (see below), whose sum is σ = 779856. Its totient is φ = 514080.

The previous prime is 646199. The next prime is 646237. The reversal of 646235 is 532646.

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

It is not a de Polignac number, because 646235 - 2⁸ = 645979 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (646237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1325 + ... + 1745.

It is an arithmetic number, because the mean of its divisors is an integer number (97482).

2⁶⁴⁶²³⁵ is an apocalyptic number.

646235 is a deficient number, since it is larger than the sum of its proper divisors (133621).

646235 is a wasteful number, since it uses less digits than its factorization.

646235 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 733.

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

The square root of 646235 is about 803.8874299303. The cubic root of 646235 is about 86.4563357871.

The spelling of 646235 in words is "six hundred forty-six thousand, two hundred thirty-five".