64044361 has 2 divisors, whose sum is σ = 64044362. Its totient is φ = 64044360.

The previous prime is 64044359. The next prime is 64044391. The reversal of 64044361 is 16344046.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 50765625 + 13278736 = 7125^2 + 3644^2 .

It is a cyclic number.

It is not a de Polignac number, because 64044361 - 2¹ = 64044359 is a prime.

Together with 64044359, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (64044301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32022180 + 32022181.

It is an arithmetic number, because the mean of its divisors is an integer number (32022181).

Almost surely, 2^64044361 is an apocalyptic number.

It is an amenable number.

64044361 is a deficient number, since it is larger than the sum of its proper divisors (1).

64044361 is an equidigital number, since it uses as much as digits as its factorization.

64044361 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 28.

The square root of 64044361 is about 8002.7720822225. The cubic root of 64044361 is about 400.0923974052.

The spelling of 64044361 in words is "sixty-four million, forty-four thousand, three hundred sixty-one".