64340776 has 16 divisors (see below), whose sum is σ = 121338900. Its totient is φ = 31983744.

The previous prime is 64340761. The next prime is 64340777. The reversal of 64340776 is 67704346.

64340776 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 61999876 + 2340900 = 7874^2 + 1530^2 .

It is not an unprimeable number, because it can be changed into a prime (64340777) 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 in 3 ways as a sum of consecutive naturals, for example, 21861 + ... + 24628.

Almost surely, 2^64340776 is an apocalyptic number.

It is an amenable number.

64340776 is a deficient number, since it is larger than the sum of its proper divisors (56998124).

64340776 is a wasteful number, since it uses less digits than its factorization.

64340776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46668 (or 46664 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 37.

The square root of 64340776 is about 8021.2702235993. The cubic root of 64340776 is about 400.7086936418.

The spelling of 64340776 in words is "sixty-four million, three hundred forty thousand, seven hundred seventy-six".