64244743 has 2 divisors, whose sum is σ = 64244744. Its totient is φ = 64244742.

The previous prime is 64244737. The next prime is 64244767. The reversal of 64244743 is 34744246.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64244743 - 2²⁵ = 30690311 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64244699 and 64244708.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64245743) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32122371 + 32122372.

It is an arithmetic number, because the mean of its divisors is an integer number (32122372).

Almost surely, 2^64244743 is an apocalyptic number.

64244743 is a deficient number, since it is larger than the sum of its proper divisors (1).

64244743 is an equidigital number, since it uses as much as digits as its factorization.

64244743 is an evil number, because the sum of its binary digits is even.

The product of its digits is 64512, while the sum is 34.

The square root of 64244743 is about 8015.2818415824. The cubic root of 64244743 is about 400.5092326801.

Adding to 64244743 its reverse (34744246), we get a palindrome (98988989).

The spelling of 64244743 in words is "sixty-four million, two hundred forty-four thousand, seven hundred forty-three".