64708646 has 4 divisors (see below), whose sum is σ = 97062972. Its totient is φ = 32354322.

The previous prime is 64708639. The next prime is 64708669. The reversal of 64708646 is 64680746.

64708646 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

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, 16177160 + ... + 16177163.

It is an arithmetic number, because the mean of its divisors is an integer number (24265743).

Almost surely, 2^64708646 is an apocalyptic number.

64708646 is a deficient number, since it is larger than the sum of its proper divisors (32354326).

64708646 is a wasteful number, since it uses less digits than its factorization.

64708646 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32354325.

The product of its (nonzero) digits is 193536, while the sum is 41.

The square root of 64708646 is about 8044.1684467694. The cubic root of 64708646 is about 401.4709301145.

The spelling of 64708646 in words is "sixty-four million, seven hundred eight thousand, six hundred forty-six".