64224029 has 2 divisors, whose sum is σ = 64224030. Its totient is φ = 64224028.

The previous prime is 64224007. The next prime is 64224071. The reversal of 64224029 is 92042246.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 51868804 + 12355225 = 7202^2 + 3515^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64224029 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 64223992 and 64224010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64224089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32112014 + 32112015.

It is an arithmetic number, because the mean of its divisors is an integer number (32112015).

Almost surely, 2^64224029 is an apocalyptic number.

It is an amenable number.

64224029 is a deficient number, since it is larger than the sum of its proper divisors (1).

64224029 is an equidigital number, since it uses as much as digits as its factorization.

64224029 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 29.

The square root of 64224029 is about 8013.9895807269. The cubic root of 64224029 is about 400.4661835545.

The spelling of 64224029 in words is "sixty-four million, two hundred twenty-four thousand, twenty-nine".