64224361 has 2 divisors, whose sum is σ = 64224362. Its totient is φ = 64224360.

The previous prime is 64224301. The next prime is 64224373. The reversal of 64224361 is 16342246.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 52113961 + 12110400 = 7219^2 + 3480^2 .

It is a cyclic number.

It is not a de Polignac number, because 64224361 - 2²³ = 55835753 is a prime.

It is not a weakly prime, because it can be changed into another prime (64224301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32112180 + 32112181.

It is an arithmetic number, because the mean of its divisors is an integer number (32112181).

Almost surely, 2^64224361 is an apocalyptic number.

It is an amenable number.

64224361 is a deficient number, since it is larger than the sum of its proper divisors (1).

64224361 is an equidigital number, since it uses as much as digits as its factorization.

64224361 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6912, while the sum is 28.

The square root of 64224361 is about 8014.0102944780. The cubic root of 64224361 is about 400.4668736106.

The spelling of 64224361 in words is "sixty-four million, two hundred twenty-four thousand, three hundred sixty-one".