63884279 has 2 divisors, whose sum is σ = 63884280. Its totient is φ = 63884278.

The previous prime is 63884221. The next prime is 63884281. The reversal of 63884279 is 97248836.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63884279 - 2¹⁶ = 63818743 is a prime.

It is a super-2 number, since 2×63884279² = 8162402206699682, which contains 22 as substring.

Together with 63884281, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63884209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31942139 + 31942140.

It is an arithmetic number, because the mean of its divisors is an integer number (31942140).

Almost surely, 2^63884279 is an apocalyptic number.

63884279 is a deficient number, since it is larger than the sum of its proper divisors (1).

63884279 is an equidigital number, since it uses as much as digits as its factorization.

63884279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 580608, while the sum is 47.

The square root of 63884279 is about 7992.7641651684. The cubic root of 63884279 is about 399.7587691317.

The spelling of 63884279 in words is "sixty-three million, eight hundred eighty-four thousand, two hundred seventy-nine".