64442303 has 2 divisors, whose sum is σ = 64442304. Its totient is φ = 64442302.

The previous prime is 64442299. The next prime is 64442309. The reversal of 64442303 is 30324446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64442303 - 2² = 64442299 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64442309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32221151 + 32221152.

It is an arithmetic number, because the mean of its divisors is an integer number (32221152).

Almost surely, 2^64442303 is an apocalyptic number.

64442303 is a deficient number, since it is larger than the sum of its proper divisors (1).

64442303 is an equidigital number, since it uses as much as digits as its factorization.

64442303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 26.

The square root of 64442303 is about 8027.5963401257. The cubic root of 64442303 is about 400.9193499537.

Adding to 64442303 its reverse (30324446), we get a palindrome (94766749).

The spelling of 64442303 in words is "sixty-four million, four hundred forty-two thousand, three hundred three".