63808879 has 2 divisors, whose sum is σ = 63808880. Its totient is φ = 63808878.

The previous prime is 63808841. The next prime is 63808909. The reversal of 63808879 is 97880836.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63808879 - 2¹³ = 63800687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63808079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31904439 + 31904440.

It is an arithmetic number, because the mean of its divisors is an integer number (31904440).

Almost surely, 2^63808879 is an apocalyptic number.

63808879 is a deficient number, since it is larger than the sum of its proper divisors (1).

63808879 is an equidigital number, since it uses as much as digits as its factorization.

63808879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 580608, while the sum is 49.

The square root of 63808879 is about 7988.0460063773. The cubic root of 63808879 is about 399.6014342453.

The spelling of 63808879 in words is "sixty-three million, eight hundred eight thousand, eight hundred seventy-nine".