663094285 has 8 divisors (see below), whose sum is σ = 909386496. Its totient is φ = 454693200.

The previous prime is 663094277. The next prime is 663094349. The reversal of 663094285 is 582490366.

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

It is not a de Polignac number, because 663094285 - 2³ = 663094277 is a prime.

It is a super-2 number, since 2×663094285² = 879388061599322450, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 9472741 + ... + 9472810.

It is an arithmetic number, because the mean of its divisors is an integer number (113673312).

Almost surely, 2^663094285 is an apocalyptic number.

It is an amenable number.

663094285 is a deficient number, since it is larger than the sum of its proper divisors (246292211).

663094285 is a wasteful number, since it uses less digits than its factorization.

663094285 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18945563.

The product of its (nonzero) digits is 311040, while the sum is 43.

The square root of 663094285 is about 25750.6171770698. The cubic root of 663094285 is about 872.0172878520.

The spelling of 663094285 in words is "six hundred sixty-three million, ninety-four thousand, two hundred eighty-five".