663235441 has 8 divisors (see below), whose sum is σ = 733441824. Its totient is φ = 594681120.

The previous prime is 663235439. The next prime is 663235453. The reversal of 663235441 is 144532366.

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

It is not a de Polignac number, because 663235441 - 2¹ = 663235439 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 663235397 and 663235406.

It is not an unprimeable number, because it can be changed into a prime (663235141) 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, 412171 + ... + 413776.

It is an arithmetic number, because the mean of its divisors is an integer number (91680228).

Almost surely, 2^663235441 is an apocalyptic number.

It is an amenable number.

663235441 is a deficient number, since it is larger than the sum of its proper divisors (70206383).

663235441 is a wasteful number, since it uses less digits than its factorization.

663235441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 826031.

The product of its digits is 51840, while the sum is 34.

The square root of 663235441 is about 25753.3578587337. The cubic root of 663235441 is about 872.0791602693.

The spelling of 663235441 in words is "six hundred sixty-three million, two hundred thirty-five thousand, four hundred forty-one".