663374 has 16 divisors (see below), whose sum is σ = 1069200. Its totient is φ = 307584.

The previous prime is 663371. The next prime is 663407. The reversal of 663374 is 473366.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663371) 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 7 ways as a sum of consecutive naturals, for example, 3617 + ... + 3795.

It is an arithmetic number, because the mean of its divisors is an integer number (66825).

2⁶⁶³³⁷⁴ is an apocalyptic number.

663374 is a deficient number, since it is larger than the sum of its proper divisors (405826).

663374 is a wasteful number, since it uses less digits than its factorization.

663374 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307.

The product of its digits is 9072, while the sum is 29.

The square root of 663374 is about 814.4777467801. The cubic root of 663374 is about 87.2139885815.

The spelling of 663374 in words is "six hundred sixty-three thousand, three hundred seventy-four".