64405283 has 2 divisors, whose sum is σ = 64405284. Its totient is φ = 64405282.

The previous prime is 64405279. The next prime is 64405309. The reversal of 64405283 is 38250446.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 64405283 - 2² = 64405279 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (64405183) 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, 32202641 + 32202642.

It is an arithmetic number, because the mean of its divisors is an integer number (32202642).

Almost surely, 2^64405283 is an apocalyptic number.

64405283 is a deficient number, since it is larger than the sum of its proper divisors (1).

64405283 is an equidigital number, since it uses as much as digits as its factorization.

64405283 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23040, while the sum is 32.

The square root of 64405283 is about 8025.2902128210. The cubic root of 64405283 is about 400.8425635538.

The spelling of 64405283 in words is "sixty-four million, four hundred five thousand, two hundred eighty-three".