663295 has 8 divisors (see below), whose sum is σ = 811296. Its totient is φ = 520416.

The previous prime is 663283. The next prime is 663301. The reversal of 663295 is 592366.

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

It is a cyclic number.

It is not a de Polignac number, because 663295 - 2⁵ = 663263 is a prime.

It is a Duffinian number.

663295 is a lucky number.

It is a congruent number.

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, 987 + ... + 1516.

It is an arithmetic number, because the mean of its divisors is an integer number (101412).

2⁶⁶³²⁹⁵ is an apocalyptic number.

663295 is a deficient number, since it is larger than the sum of its proper divisors (148001).

663295 is a wasteful number, since it uses less digits than its factorization.

663295 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2561.

The product of its digits is 9720, while the sum is 31.

The square root of 663295 is about 814.4292480013. The cubic root of 663295 is about 87.2105263925.

It can be divided in two parts, 66 and 3295, that multiplied together give a triangular number (217470 = T₆₅₉).

The spelling of 663295 in words is "six hundred sixty-three thousand, two hundred ninety-five".