663703743 has 8 divisors (see below), whose sum is σ = 908855728. Its totient is φ = 430510464.

The previous prime is 663703741. The next prime is 663703751. The reversal of 663703743 is 347307366.

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

It is not a de Polignac number, because 663703743 - 2¹ = 663703741 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (663703741) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2989546 + ... + 2989767.

It is an arithmetic number, because the mean of its divisors is an integer number (113606966).

Almost surely, 2^663703743 is an apocalyptic number.

663703743 is a deficient number, since it is larger than the sum of its proper divisors (245151985).

663703743 is a wasteful number, since it uses less digits than its factorization.

663703743 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5979353.

The product of its (nonzero) digits is 190512, while the sum is 39.

The square root of 663703743 is about 25762.4483114474. The cubic root of 663703743 is about 872.2843665989.

The spelling of 663703743 in words is "six hundred sixty-three million, seven hundred three thousand, seven hundred forty-three".