64321423 has 2 divisors, whose sum is σ = 64321424. Its totient is φ = 64321422.

The previous prime is 64321399. The next prime is 64321459. The reversal of 64321423 is 32412346.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64321423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64321463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32160711 + 32160712.

It is an arithmetic number, because the mean of its divisors is an integer number (32160712).

Almost surely, 2^64321423 is an apocalyptic number.

64321423 is a deficient number, since it is larger than the sum of its proper divisors (1).

64321423 is an equidigital number, since it uses as much as digits as its factorization.

64321423 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3456, while the sum is 25.

The square root of 64321423 is about 8020.0637778013. The cubic root of 64321423 is about 400.6685133523.

Adding to 64321423 its reverse (32412346), we get a palindrome (96733769).

The spelling of 64321423 in words is "sixty-four million, three hundred twenty-one thousand, four hundred twenty-three".