64244423 has 2 divisors, whose sum is σ = 64244424. Its totient is φ = 64244422.

The previous prime is 64244419. The next prime is 64244461. The reversal of 64244423 is 32444246.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64244423 - 2² = 64244419 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64244473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32122211 + 32122212.

It is an arithmetic number, because the mean of its divisors is an integer number (32122212).

Almost surely, 2^64244423 is an apocalyptic number.

64244423 is a deficient number, since it is larger than the sum of its proper divisors (1).

64244423 is an equidigital number, since it uses as much as digits as its factorization.

64244423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 18432, while the sum is 29.

The square root of 64244423 is about 8015.2618796893. The cubic root of 64244423 is about 400.5085677065.

Adding to 64244423 its reverse (32444246), we get a palindrome (96688669).

The spelling of 64244423 in words is "sixty-four million, two hundred forty-four thousand, four hundred twenty-three".