663753472 has 36 divisors (see below), whose sum is σ = 1329773256. Its totient is φ = 330659840.

The previous prime is 663753463. The next prime is 663753487. The reversal of 663753472 is 274357366.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 67323 + ... + 76549.

It is an arithmetic number, because the mean of its divisors is an integer number (36938146).

Almost surely, 2^663753472 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 663753472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (664886628).

663753472 is an abundant number, since it is smaller than the sum of its proper divisors (666019784).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

663753472 is an equidigital number, since it uses as much as digits as its factorization.

663753472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9524 (or 9510 counting only the distinct ones).

The product of its digits is 635040, while the sum is 43.

The square root of 663753472 is about 25763.4134384402. The cubic root of 663753472 is about 872.3061517937.

It can be divided in two parts, 663753 and 472, that added together give a square (664225 = 815²).

The spelling of 663753472 in words is "six hundred sixty-three million, seven hundred fifty-three thousand, four hundred seventy-two".