63970969 has 2 divisors, whose sum is σ = 63970970. Its totient is φ = 63970968.

The previous prime is 63970937. The next prime is 63970993. The reversal of 63970969 is 96907936.

63970969 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 63043600 + 927369 = 7940^2 + 963^2 .

It is a cyclic number.

It is not a de Polignac number, because 63970969 - 2⁵ = 63970937 is a prime.

It is a super-2 number, since 2×63970969² = 8184569749597922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (63970069) 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 as a sum of consecutive naturals, namely, 31985484 + 31985485.

It is an arithmetic number, because the mean of its divisors is an integer number (31985485).

Almost surely, 2^63970969 is an apocalyptic number.

It is an amenable number.

63970969 is a deficient number, since it is larger than the sum of its proper divisors (1).

63970969 is an equidigital number, since it uses as much as digits as its factorization.

63970969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 551124, while the sum is 49.

The square root of 63970969 is about 7998.1853566919. The cubic root of 63970969 is about 399.9395096027.

The spelling of 63970969 in words is "sixty-three million, nine hundred seventy thousand, nine hundred sixty-nine".