64511339 has 2 divisors, whose sum is σ = 64511340. Its totient is φ = 64511338.

The previous prime is 64511329. The next prime is 64511347. The reversal of 64511339 is 93311546.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 64511339 - 2¹⁶ = 64445803 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (64511329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32255669 + 32255670.

It is an arithmetic number, because the mean of its divisors is an integer number (32255670).

Almost surely, 2^64511339 is an apocalyptic number.

64511339 is a deficient number, since it is larger than the sum of its proper divisors (1).

64511339 is an equidigital number, since it uses as much as digits as its factorization.

64511339 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 32.

The square root of 64511339 is about 8031.8951063868. The cubic root of 64511339 is about 401.0624650050.

The spelling of 64511339 in words is "sixty-four million, five hundred eleven thousand, three hundred thirty-nine".