63280775 has 12 divisors (see below), whose sum is σ = 78728592. Its totient is φ = 50456640.

The previous prime is 63280771. The next prime is 63280787. The reversal of 63280775 is 57708236.

It is a happy number.

It is not a de Polignac number, because 63280775 - 2² = 63280771 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 (63280771) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3782 + ... + 11868.

It is an arithmetic number, because the mean of its divisors is an integer number (6560716).

Almost surely, 2^63280775 is an apocalyptic number.

63280775 is a deficient number, since it is larger than the sum of its proper divisors (15447817).

63280775 is a wasteful number, since it uses less digits than its factorization.

63280775 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8410 (or 8405 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 38.

The square root of 63280775 is about 7954.9214326730. The cubic root of 63280775 is about 398.4959663786.

The spelling of 63280775 in words is "sixty-three million, two hundred eighty thousand, seven hundred seventy-five".