64759957 has 2 divisors, whose sum is σ = 64759958. Its totient is φ = 64759956.

The previous prime is 64759943. The next prime is 64759991. The reversal of 64759957 is 75995746.

It is a happy number.

64759957 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 44635761 + 20124196 = 6681^2 + 4486^2 .

It is a cyclic number.

It is not a de Polignac number, because 64759957 - 2²³ = 56371349 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (64759907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 32379978 + 32379979.

It is an arithmetic number, because the mean of its divisors is an integer number (32379979).

Almost surely, 2^64759957 is an apocalyptic number.

It is an amenable number.

64759957 is a deficient number, since it is larger than the sum of its proper divisors (1).

64759957 is an equidigital number, since it uses as much as digits as its factorization.

64759957 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2381400, while the sum is 52.

The square root of 64759957 is about 8047.3571438081. The cubic root of 64759957 is about 401.5770181138.

The spelling of 64759957 in words is "sixty-four million, seven hundred fifty-nine thousand, nine hundred fifty-seven".