63400069 has 2 divisors, whose sum is σ = 63400070. Its totient is φ = 63400068.

The previous prime is 63400033. The next prime is 63400081. The reversal of 63400069 is 96000436.

63400069 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., 33292900 + 30107169 = 5770^2 + 5487^2 .

It is a cyclic number.

It is not a de Polignac number, because 63400069 - 2¹¹ = 63398021 is a prime.

It is a super-2 number, since 2×63400069² = 8039137498409522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (63400009) 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, 31700034 + 31700035.

It is an arithmetic number, because the mean of its divisors is an integer number (31700035).

Almost surely, 2^63400069 is an apocalyptic number.

It is an amenable number.

63400069 is a deficient number, since it is larger than the sum of its proper divisors (1).

63400069 is an equidigital number, since it uses as much as digits as its factorization.

63400069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3888, while the sum is 28.

The square root of 63400069 is about 7962.4160278147. The cubic root of 63400069 is about 398.7462179324.

The spelling of 63400069 in words is "sixty-three million, four hundred thousand, sixty-nine".