663115 has 4 divisors (see below), whose sum is σ = 795744. Its totient is φ = 530488.

The previous prime is 663097. The next prime is 663127. The reversal of 663115 is 511366.

663115 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 663115 - 2¹³ = 654923 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 66307 + ... + 66316.

It is an arithmetic number, because the mean of its divisors is an integer number (198936).

2⁶⁶³¹¹⁵ is an apocalyptic number.

663115 is a deficient number, since it is larger than the sum of its proper divisors (132629).

663115 is a wasteful number, since it uses less digits than its factorization.

663115 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132628.

The product of its digits is 540, while the sum is 22.

The square root of 663115 is about 814.3187336664. The cubic root of 663115 is about 87.2026368335.

It can be divided in two parts, 663 and 115, that multiplied together give a triangular number (76245 = T₃₉₀).

The spelling of 663115 in words is "six hundred sixty-three thousand, one hundred fifteen".