64896743 has 2 divisors, whose sum is σ = 64896744. Its totient is φ = 64896742.

The previous prime is 64896739. The next prime is 64896773. The reversal of 64896743 is 34769846.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64896743 - 2² = 64896739 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64896773) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32448371 + 32448372.

It is an arithmetic number, because the mean of its divisors is an integer number (32448372).

Almost surely, 2^64896743 is an apocalyptic number.

64896743 is a deficient number, since it is larger than the sum of its proper divisors (1).

64896743 is an equidigital number, since it uses as much as digits as its factorization.

64896743 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 47.

The square root of 64896743 is about 8055.8514757907. The cubic root of 64896743 is about 401.8595563128.

The spelling of 64896743 in words is "sixty-four million, eight hundred ninety-six thousand, seven hundred forty-three".