64076777 has 2 divisors, whose sum is σ = 64076778. Its totient is φ = 64076776.

The previous prime is 64076717. The next prime is 64076801. The reversal of 64076777 is 77767046.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 62663056 + 1413721 = 7916^2 + 1189^2 .

It is a cyclic number.

It is not a de Polignac number, because 64076777 - 2⁶ = 64076713 is a prime.

It is not a weakly prime, because it can be changed into another prime (64076717) 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, 32038388 + 32038389.

It is an arithmetic number, because the mean of its divisors is an integer number (32038389).

Almost surely, 2^64076777 is an apocalyptic number.

It is an amenable number.

64076777 is a deficient number, since it is larger than the sum of its proper divisors (1).

64076777 is an equidigital number, since it uses as much as digits as its factorization.

64076777 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345744, while the sum is 44.

The square root of 64076777 is about 8004.7971242249. The cubic root of 64076777 is about 400.1598881643.

The spelling of 64076777 in words is "sixty-four million, seventy-six thousand, seven hundred seventy-seven".