63488765 has 4 divisors (see below), whose sum is σ = 76186524. Its totient is φ = 50791008.

The previous prime is 63488749. The next prime is 63488767. The reversal of 63488765 is 56788436.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 41229241 + 22259524 = 6421^2 + 4718^2 .

It is a cyclic number.

It is not a de Polignac number, because 63488765 - 2⁴ = 63488749 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 (63488767) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6348872 + ... + 6348881.

It is an arithmetic number, because the mean of its divisors is an integer number (19046631).

Almost surely, 2^63488765 is an apocalyptic number.

It is an amenable number.

63488765 is a deficient number, since it is larger than the sum of its proper divisors (12697759).

63488765 is a wasteful number, since it uses less digits than its factorization.

63488765 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12697758.

The product of its digits is 967680, while the sum is 47.

The square root of 63488765 is about 7967.9837474734. The cubic root of 63488765 is about 398.9320784797.

The spelling of 63488765 in words is "sixty-three million, four hundred eighty-eight thousand, seven hundred sixty-five".