64527899 has 2 divisors, whose sum is σ = 64527900. Its totient is φ = 64527898.

The previous prime is 64527803. The next prime is 64527917. The reversal of 64527899 is 99872546.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-64527899 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (64524899) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32263949 + 32263950.

It is an arithmetic number, because the mean of its divisors is an integer number (32263950).

Almost surely, 2^64527899 is an apocalyptic number.

64527899 is a deficient number, since it is larger than the sum of its proper divisors (1).

64527899 is an equidigital number, since it uses as much as digits as its factorization.

64527899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1088640, while the sum is 50.

The square root of 64527899 is about 8032.9259301950. The cubic root of 64527899 is about 401.0967795214.

The spelling of 64527899 in words is "sixty-four million, five hundred twenty-seven thousand, eight hundred ninety-nine".