663275 has 12 divisors (see below), whose sum is σ = 842952. Its totient is φ = 517440.

The previous prime is 663269. The next prime is 663281. The reversal of 663275 is 572366.

It is an interprime number because it is at equal distance from previous prime (663269) and next prime (663281).

It is not a de Polignac number, because 663275 - 2¹⁰ = 662251 is a prime.

It is a Duffinian number.

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, 767 + ... + 1383.

It is an arithmetic number, because the mean of its divisors is an integer number (70246).

2⁶⁶³²⁷⁵ is an apocalyptic number.

663275 is a deficient number, since it is larger than the sum of its proper divisors (179677).

663275 is a wasteful number, since it uses less digits than its factorization.

663275 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670 (or 665 counting only the distinct ones).

The product of its digits is 7560, while the sum is 29.

The square root of 663275 is about 814.4169693713. The cubic root of 663275 is about 87.2096498453.

Subtracting from 663275 its reverse (572366), we obtain a palindrome (90909).

The spelling of 663275 in words is "six hundred sixty-three thousand, two hundred seventy-five".