663099 has 8 divisors (see below), whose sum is σ = 897600. Its totient is φ = 435336.

The previous prime is 663097. The next prime is 663127. The reversal of 663099 is 990366.

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

It is not a de Polignac number, because 663099 - 2¹ = 663097 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663097) 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, 1449 + ... + 1850.

It is an arithmetic number, because the mean of its divisors is an integer number (112200).

2⁶⁶³⁰⁹⁹ is an apocalyptic number.

663099 is a deficient number, since it is larger than the sum of its proper divisors (234501).

663099 is a wasteful number, since it uses less digits than its factorization.

663099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3369.

The product of its (nonzero) digits is 8748, while the sum is 33.

The square root of 663099 is about 814.3089094441. The cubic root of 663099 is about 87.2019354703.

The spelling of 663099 in words is "six hundred sixty-three thousand, ninety-nine".