663334769 has 4 divisors (see below), whose sum is σ = 664005120. Its totient is φ = 662664420.

The previous prime is 663334759. The next prime is 663334823. The reversal of 663334769 is 967433366.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 663334769 - 2¹² = 663330673 is a prime.

It is a super-2 number, since 2×663334769² = 880026031528566722, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663334709) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 333689 + ... + 335670.

It is an arithmetic number, because the mean of its divisors is an integer number (166001280).

Almost surely, 2^663334769 is an apocalyptic number.

It is an amenable number.

663334769 is a deficient number, since it is larger than the sum of its proper divisors (670351).

663334769 is an equidigital number, since it uses as much as digits as its factorization.

663334769 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670350.

The product of its digits is 1469664, while the sum is 47.

The square root of 663334769 is about 25755.2862340918. The cubic root of 663334769 is about 872.1226931033.

The spelling of 663334769 in words is "six hundred sixty-three million, three hundred thirty-four thousand, seven hundred sixty-nine".