64770706 has 32 divisors (see below), whose sum is σ = 130451328. Its totient is φ = 23293440.

The previous prime is 64770703. The next prime is 64770733. The reversal of 64770706 is 60707746.

64770706 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (64770701) 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 15 ways as a sum of consecutive naturals, for example, 14175 + ... + 18178.

It is an arithmetic number, because the mean of its divisors is an integer number (4076604).

Almost surely, 2^64770706 is an apocalyptic number.

64770706 is an abundant number, since it is smaller than the sum of its proper divisors (65680622).

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

64770706 is a wasteful number, since it uses less digits than its factorization.

64770706 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32386.

The product of its (nonzero) digits is 49392, while the sum is 37.

The square root of 64770706 is about 8048.0249751104. The cubic root of 64770706 is about 401.5992350967.

The spelling of 64770706 in words is "sixty-four million, seven hundred seventy thousand, seven hundred six".