63448765 has 8 divisors (see below), whose sum is σ = 76217400. Its totient is φ = 50706432.

The previous prime is 63448757. The next prime is 63448783. The reversal of 63448765 is 56784436.

It can be written as a sum of positive squares in 4 ways, for example, as 3896676 + 59552089 = 1974^2 + 7717^2 .

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 63448765 - 2³ = 63448757 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 804 + ... + 11293.

It is an arithmetic number, because the mean of its divisors is an integer number (9527175).

Almost surely, 2^63448765 is an apocalyptic number.

It is an amenable number.

63448765 is a deficient number, since it is larger than the sum of its proper divisors (12768635).

63448765 is a wasteful number, since it uses less digits than its factorization.

63448765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13151.

The product of its digits is 483840, while the sum is 43.

The square root of 63448765 is about 7965.4733067157. The cubic root of 63448765 is about 398.8482807899.

The spelling of 63448765 in words is "sixty-three million, four hundred forty-eight thousand, seven hundred sixty-five".