64613069 has 2 divisors, whose sum is σ = 64613070. Its totient is φ = 64613068.

The previous prime is 64613041. The next prime is 64613071. The reversal of 64613069 is 96031646.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62173225 + 2439844 = 7885^2 + 1562^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64613069 is a prime.

It is a super-2 number, since 2×64613069² = 8349697371197522, which contains 22 as substring.

Together with 64613071, 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 (64613009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32306534 + 32306535.

It is an arithmetic number, because the mean of its divisors is an integer number (32306535).

Almost surely, 2^64613069 is an apocalyptic number.

It is an amenable number.

64613069 is a deficient number, since it is larger than the sum of its proper divisors (1).

64613069 is an equidigital number, since it uses as much as digits as its factorization.

64613069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23328, while the sum is 35.

The square root of 64613069 is about 8038.2254882530. The cubic root of 64613069 is about 401.2731703768.

The spelling of 64613069 in words is "sixty-four million, six hundred thirteen thousand, sixty-nine".