663354 has 24 divisors (see below), whose sum is σ = 1453140. Its totient is φ = 218688.

The previous prime is 663349. The next prime is 663359. The reversal of 663354 is 453366.

It is an interprime number because it is at equal distance from previous prime (663349) and next prime (663359).

It can be written as a sum of positive squares in 2 ways, for example, as 632025 + 31329 = 795^2 + 177^2 .

It is not an unprimeable number, because it can be changed into a prime (663359) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 2332 + ... + 2600.

2⁶⁶³³⁵⁴ is an apocalyptic number.

663354 is an abundant number, since it is smaller than the sum of its proper divisors (789786).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

663354 is a wasteful number, since it uses less digits than its factorization.

663354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414 (or 411 counting only the distinct ones).

The product of its digits is 6480, while the sum is 27.

The square root of 663354 is about 814.4654688813. The cubic root of 663354 is about 87.2131121040.

The spelling of 663354 in words is "six hundred sixty-three thousand, three hundred fifty-four".