64465441 has 2 divisors, whose sum is σ = 64465442. Its totient is φ = 64465440.

The previous prime is 64465439. The next prime is 64465447. The reversal of 64465441 is 14456446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 52417600 + 12047841 = 7240^2 + 3471^2 .

It is a cyclic number.

It is not a de Polignac number, because 64465441 - 2¹ = 64465439 is a prime.

Together with 64465439, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 64465397 and 64465406.

It is not a weakly prime, because it can be changed into another prime (64465447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32232720 + 32232721.

It is an arithmetic number, because the mean of its divisors is an integer number (32232721).

Almost surely, 2^64465441 is an apocalyptic number.

It is an amenable number.

64465441 is a deficient number, since it is larger than the sum of its proper divisors (1).

64465441 is an equidigital number, since it uses as much as digits as its factorization.

64465441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46080, while the sum is 34.

The square root of 64465441 is about 8029.0373644666. The cubic root of 64465441 is about 400.9673275578.

The spelling of 64465441 in words is "sixty-four million, four hundred sixty-five thousand, four hundred forty-one".