64814371 has 2 divisors, whose sum is σ = 64814372. Its totient is φ = 64814370.

The previous prime is 64814369. The next prime is 64814401. The reversal of 64814371 is 17341846.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64814371 - 2¹ = 64814369 is a prime.

Together with 64814369, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (64814671) 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, 32407185 + 32407186.

It is an arithmetic number, because the mean of its divisors is an integer number (32407186).

Almost surely, 2^64814371 is an apocalyptic number.

64814371 is a deficient number, since it is larger than the sum of its proper divisors (1).

64814371 is an equidigital number, since it uses as much as digits as its factorization.

64814371 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16128, while the sum is 34.

The square root of 64814371 is about 8050.7372954283. The cubic root of 64814371 is about 401.6894605117.

The spelling of 64814371 in words is "sixty-four million, eight hundred fourteen thousand, three hundred seventy-one".