64713760 has 24 divisors (see below), whose sum is σ = 152886636. Its totient is φ = 25885440.

The previous prime is 64713749. The next prime is 64713763. The reversal of 64713760 is 6731746.

64713760 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 60403984 + 4309776 = 7772^2 + 2076^2 .

It is a Smith number, since the sum of its digits (34) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (64713763) 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, 202071 + ... + 202390.

Almost surely, 2^64713760 is an apocalyptic number.

It is an amenable number.

64713760 is an abundant number, since it is smaller than the sum of its proper divisors (88172876).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

64713760 is a wasteful number, since it uses less digits than its factorization.

64713760 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 404476 (or 404468 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 34.

The square root of 64713760 is about 8044.4863105111. The cubic root of 64713760 is about 401.4815060750.

The spelling of 64713760 in words is "sixty-four million, seven hundred thirteen thousand, seven hundred sixty".