64395433 has 2 divisors, whose sum is σ = 64395434. Its totient is φ = 64395432.

The previous prime is 64395403. The next prime is 64395481. The reversal of 64395433 is 33459346.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 39275289 + 25120144 = 6267^2 + 5012^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64395433 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 64395392 and 64395401.

It is not a weakly prime, because it can be changed into another prime (64395403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32197716 + 32197717.

It is an arithmetic number, because the mean of its divisors is an integer number (32197717).

Almost surely, 2^64395433 is an apocalyptic number.

It is an amenable number.

64395433 is a deficient number, since it is larger than the sum of its proper divisors (1).

64395433 is an equidigital number, since it uses as much as digits as its factorization.

64395433 is an evil number, because the sum of its binary digits is even.

The product of its digits is 116640, while the sum is 37.

The square root of 64395433 is about 8024.6765043832. The cubic root of 64395433 is about 400.8221278568.

The spelling of 64395433 in words is "sixty-four million, three hundred ninety-five thousand, four hundred thirty-three".