64244461 has 2 divisors, whose sum is σ = 64244462. Its totient is φ = 64244460.

The previous prime is 64244423. The next prime is 64244473. The reversal of 64244461 is 16444246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 59382436 + 4862025 = 7706^2 + 2205^2 .

It is a cyclic number.

It is not a de Polignac number, because 64244461 - 2¹⁷ = 64113389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64244861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32122230 + 32122231.

It is an arithmetic number, because the mean of its divisors is an integer number (32122231).

Almost surely, 2^64244461 is an apocalyptic number.

It is an amenable number.

64244461 is a deficient number, since it is larger than the sum of its proper divisors (1).

64244461 is an equidigital number, since it uses as much as digits as its factorization.

64244461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 18432, while the sum is 31.

The square root of 64244461 is about 8015.2642501667. The cubic root of 64244461 is about 400.5086466722.

The spelling of 64244461 in words is "sixty-four million, two hundred forty-four thousand, four hundred sixty-one".