64836269 has 2 divisors, whose sum is σ = 64836270. Its totient is φ = 64836268.

The previous prime is 64836203. The next prime is 64836271. The reversal of 64836269 is 96263846.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 64722025 + 114244 = 8045^2 + 338^2 .

It is a cyclic number.

It is not a de Polignac number, because 64836269 - 2¹⁶ = 64770733 is a prime.

It is a super-2 number, since 2×64836269² = 8407483555680722, which contains 22 as substring.

Together with 64836271, 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 (64836869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32418134 + 32418135.

It is an arithmetic number, because the mean of its divisors is an integer number (32418135).

Almost surely, 2^64836269 is an apocalyptic number.

It is an amenable number.

64836269 is a deficient number, since it is larger than the sum of its proper divisors (1).

64836269 is an equidigital number, since it uses as much as digits as its factorization.

64836269 is an evil number, because the sum of its binary digits is even.

The product of its digits is 373248, while the sum is 44.

The square root of 64836269 is about 8052.0971802382. The cubic root of 64836269 is about 401.7346933062.

The spelling of 64836269 in words is "sixty-four million, eight hundred thirty-six thousand, two hundred sixty-nine".