63695969 has 2 divisors, whose sum is σ = 63695970. Its totient is φ = 63695968.

The previous prime is 63695959. The next prime is 63696007. The reversal of 63695969 is 96959636.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 33500944 + 30195025 = 5788^2 + 5495^2 .

It is a cyclic number.

It is not a de Polignac number, because 63695969 - 2²⁰ = 62647393 is a prime.

It is a super-2 number, since 2×63695969² = 8114352933697922, which contains 22 as substring.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 63695969.

It is not a weakly prime, because it can be changed into another prime (63695959) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31847984 + 31847985.

It is an arithmetic number, because the mean of its divisors is an integer number (31847985).

Almost surely, 2^63695969 is an apocalyptic number.

It is an amenable number.

63695969 is a deficient number, since it is larger than the sum of its proper divisors (1).

63695969 is an equidigital number, since it uses as much as digits as its factorization.

63695969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2361960, while the sum is 53.

The square root of 63695969 is about 7980.9754416362. The cubic root of 63695969 is about 399.3655964456.

The spelling of 63695969 in words is "sixty-three million, six hundred ninety-five thousand, nine hundred sixty-nine".