663274 has 8 divisors (see below), whose sum is σ = 1038240. Its totient is φ = 317196.

The previous prime is 663269. The next prime is 663281. The reversal of 663274 is 472366.

663274 = 62² + 63² + ... + 130².

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7164 + ... + 7255.

It is an arithmetic number, because the mean of its divisors is an integer number (129780).

2⁶⁶³²⁷⁴ is an apocalyptic number.

663274 is a deficient number, since it is larger than the sum of its proper divisors (374966).

663274 is a wasteful number, since it uses less digits than its factorization.

663274 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14444.

The product of its digits is 6048, while the sum is 28.

The square root of 663274 is about 814.4163554350. The cubic root of 663274 is about 87.2096060175.

The spelling of 663274 in words is "six hundred sixty-three thousand, two hundred seventy-four".