63648099 has 10 divisors (see below), whose sum is σ = 95079380. Its totient is φ = 42432012.

The previous prime is 63648073. The next prime is 63648131. The reversal of 63648099 is 99084636.

63648099 is a `hidden beast` number, since 636 + 4 + 8 + 0 + 9 + 9 = 666.

It is not a de Polignac number, because 63648099 - 2⁷ = 63647971 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63648049) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 392809 + ... + 392970.

It is an arithmetic number, because the mean of its divisors is an integer number (9507938).

Almost surely, 2^63648099 is an apocalyptic number.

63648099 is a deficient number, since it is larger than the sum of its proper divisors (31431281).

63648099 is an equidigital number, since it uses as much as digits as its factorization.

63648099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 785791 (or 785782 counting only the distinct ones).

The product of its (nonzero) digits is 279936, while the sum is 45.

The square root of 63648099 is about 7977.9758711092. The cubic root of 63648099 is about 399.2655251087.

The spelling of 63648099 in words is "sixty-three million, six hundred forty-eight thousand, ninety-nine".