64493441 has 2 divisors, whose sum is σ = 64493442. Its totient is φ = 64493440.

The previous prime is 64493417. The next prime is 64493483. The reversal of 64493441 is 14439446.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 60902416 + 3591025 = 7804^2 + 1895^2 .

It is a cyclic number.

It is not a de Polignac number, because 64493441 - 2¹⁴ = 64477057 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (64493491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32246720 + 32246721.

It is an arithmetic number, because the mean of its divisors is an integer number (32246721).

Almost surely, 2^64493441 is an apocalyptic number.

It is an amenable number.

64493441 is a deficient number, since it is larger than the sum of its proper divisors (1).

64493441 is an equidigital number, since it uses as much as digits as its factorization.

64493441 is an evil number, because the sum of its binary digits is even.

The product of its digits is 41472, while the sum is 35.

The square root of 64493441 is about 8030.7808462191. The cubic root of 64493441 is about 401.0253713712.

The spelling of 64493441 in words is "sixty-four million, four hundred ninety-three thousand, four hundred forty-one".