63259967 has 2 divisors, whose sum is σ = 63259968. Its totient is φ = 63259966.

The previous prime is 63259939. The next prime is 63259969. The reversal of 63259967 is 76995236.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63259967 is a prime.

Together with 63259969, 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 (63259969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31629983 + 31629984.

It is an arithmetic number, because the mean of its divisors is an integer number (31629984).

Almost surely, 2^63259967 is an apocalyptic number.

63259967 is a deficient number, since it is larger than the sum of its proper divisors (1).

63259967 is an equidigital number, since it uses as much as digits as its factorization.

63259967 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 612360, while the sum is 47.

The square root of 63259967 is about 7953.6134555308. The cubic root of 63259967 is about 398.4522837431.

The spelling of 63259967 in words is "sixty-three million, two hundred fifty-nine thousand, nine hundred sixty-seven".