663260741 has 8 divisors (see below), whose sum is σ = 779215584. Its totient is φ = 556582320.

The previous prime is 663260687. The next prime is 663260743. The reversal of 663260741 is 147062366.

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

It is a cyclic number.

It is not a de Polignac number, because 663260741 - 2⁶ = 663260677 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 (663260743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2318951 + ... + 2319236.

It is an arithmetic number, because the mean of its divisors is an integer number (97401948).

Almost surely, 2^663260741 is an apocalyptic number.

It is an amenable number.

663260741 is a deficient number, since it is larger than the sum of its proper divisors (115954843).

663260741 is a wasteful number, since it uses less digits than its factorization.

663260741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4638211.

The product of its (nonzero) digits is 36288, while the sum is 35.

The square root of 663260741 is about 25753.8490521320. The cubic root of 663260741 is about 872.0902490024.

The spelling of 663260741 in words is "six hundred sixty-three million, two hundred sixty thousand, seven hundred forty-one".