63128788 has 12 divisors (see below), whose sum is σ = 110576340. Its totient is φ = 31535552.

The previous prime is 63128783. The next prime is 63128789. The reversal of 63128788 is 88782136.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 53406864 + 9721924 = 7308^2 + 3118^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63128783) 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, 1843 + ... + 11386.

It is an arithmetic number, because the mean of its divisors is an integer number (9214695).

Almost surely, 2^63128788 is an apocalyptic number.

It is an amenable number.

63128788 is a deficient number, since it is larger than the sum of its proper divisors (47447552).

63128788 is a wasteful number, since it uses less digits than its factorization.

63128788 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14426 (or 14424 counting only the distinct ones).

The product of its digits is 129024, while the sum is 43.

The square root of 63128788 is about 7945.3626726538. The cubic root of 63128788 is about 398.1766763557.

The spelling of 63128788 in words is "sixty-three million, one hundred twenty-eight thousand, seven hundred eighty-eight".