64969 has 2 divisors, whose sum is σ = 64970. Its totient is φ = 64968.

The previous prime is 64951. The next prime is 64997. The reversal of 64969 is 96946.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 45369 + 19600 = 213^2 + 140^2 .

It is a cyclic number.

It is not a de Polignac number, because 64969 - 2⁵ = 64937 is a prime.

It is a super-2 number, since 2×64969² = 8441941922, which contains 22 as substring.

64969 is a lucky number.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (64919) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32484 + 32485.

It is an arithmetic number, because the mean of its divisors is an integer number (32485).

2⁶⁴⁹⁶⁹ is an apocalyptic number.

It is an amenable number.

64969 is a deficient number, since it is larger than the sum of its proper divisors (1).

64969 is an equidigital number, since it uses as much as digits as its factorization.

64969 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 11664, while the sum is 34.

The square root of 64969 is about 254.8901724273. The cubic root of 64969 is about 40.2008646465.

The spelling of 64969 in words is "sixty-four thousand, nine hundred sixty-nine".