63709472 has 54 divisors (see below), whose sum is σ = 134864793. Its totient is φ = 29619712.

The previous prime is 63709463. The next prime is 63709511. The reversal of 63709472 is 27490736.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 58308496 + 5400976 = 7636^2 + 2324^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=5644.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 767543 + ... + 767625.

Almost surely, 2^63709472 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 63709472

63709472 is an abundant number, since it is smaller than the sum of its proper divisors (71155321).

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

63709472 is an equidigital number, since it uses as much as digits as its factorization.

63709472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210 (or 102 counting only the distinct ones).

The product of its (nonzero) digits is 63504, while the sum is 38.

The square root of 63709472 is about 7981.8213460337. The cubic root of 63709472 is about 399.3938151472.

The spelling of 63709472 in words is "sixty-three million, seven hundred nine thousand, four hundred seventy-two".