663060443 has 4 divisors (see below), whose sum is σ = 677168160. Its totient is φ = 648952728.

The previous prime is 663060427. The next prime is 663060493. The reversal of 663060443 is 344060366.

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 663060443 - 2⁴ = 663060427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663060403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7053788 + ... + 7053881.

It is an arithmetic number, because the mean of its divisors is an integer number (169292040).

Almost surely, 2^663060443 is an apocalyptic number.

663060443 is a deficient number, since it is larger than the sum of its proper divisors (14107717).

663060443 is a wasteful number, since it uses less digits than its factorization.

663060443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14107716.

The product of its (nonzero) digits is 31104, while the sum is 32.

The square root of 663060443 is about 25749.9600582214. The cubic root of 663060443 is about 872.0024527012.

The spelling of 663060443 in words is "six hundred sixty-three million, sixty thousand, four hundred forty-three".