64824293 has 2 divisors, whose sum is σ = 64824294. Its totient is φ = 64824292.

The previous prime is 64824289. The next prime is 64824299. The reversal of 64824293 is 39242846.

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., 51523684 + 13300609 = 7178^2 + 3647^2 .

It is a cyclic number.

It is not a de Polignac number, because 64824293 - 2² = 64824289 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64824299) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32412146 + 32412147.

It is an arithmetic number, because the mean of its divisors is an integer number (32412147).

Almost surely, 2^64824293 is an apocalyptic number.

It is an amenable number.

64824293 is a deficient number, since it is larger than the sum of its proper divisors (1).

64824293 is an equidigital number, since it uses as much as digits as its factorization.

64824293 is an evil number, because the sum of its binary digits is even.

The product of its digits is 82944, while the sum is 38.

The square root of 64824293 is about 8051.3534886999. The cubic root of 64824293 is about 401.7099567865.

The spelling of 64824293 in words is "sixty-four million, eight hundred twenty-four thousand, two hundred ninety-three".