612663 has 16 divisors (see below), whose sum is σ = 889056. Its totient is φ = 373760.

The previous prime is 612649. The next prime is 612671. The reversal of 612663 is 366216.

It is a cyclic number.

It is not a de Polignac number, because 612663 - 2⁸ = 612407 is a prime.

It is a plaindrome in base 9.

It is a zygodrome in base 9.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (612613) 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 15 ways as a sum of consecutive naturals, for example, 1945 + ... + 2237.

It is an arithmetic number, because the mean of its divisors is an integer number (55566).

2⁶¹²⁶⁶³ is an apocalyptic number.

612663 is a deficient number, since it is larger than the sum of its proper divisors (276393).

612663 is a wasteful number, since it uses less digits than its factorization.

612663 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354.

The product of its digits is 1296, while the sum is 24.

The square root of 612663 is about 782.7279220777. The cubic root of 612663 is about 84.9324954236.

Adding to 612663 its reverse (366216), we get a palindrome (978879).

It can be divided in two parts, 612 and 663, that added together give a triangular number (1275 = T₅₀).

The spelling of 612663 in words is "six hundred twelve thousand, six hundred sixty-three".