63115893 has 6 divisors (see below), whose sum is σ = 91167414. Its totient is φ = 42077256.

The previous prime is 63115879. The next prime is 63115901. The reversal of 63115893 is 39851136.

It is a happy number.

63115893 is a `hidden beast` number, since 63 + 11 + 589 + 3 = 666.

63115893 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 32012964 + 31102929 = 5658^2 + 5577^2 .

It is not a de Polignac number, because 63115893 - 2¹⁰ = 63114869 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (63135893) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 3506430 + ... + 3506447.

It is an arithmetic number, because the mean of its divisors is an integer number (15194569).

Almost surely, 2^63115893 is an apocalyptic number.

It is an amenable number.

63115893 is a deficient number, since it is larger than the sum of its proper divisors (28051521).

63115893 is a wasteful number, since it uses less digits than its factorization.

63115893 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7012883 (or 7012880 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 63115893 is about 7944.5511515755. The cubic root of 63115893 is about 398.1495633272.

The spelling of 63115893 in words is "sixty-three million, one hundred fifteen thousand, eight hundred ninety-three".