64664346 has 32 divisors (see below), whose sum is σ = 134861760. Its totient is φ = 20651904.

The previous prime is 64664321. The next prime is 64664381. The reversal of 64664346 is 64346646.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11310 + ... + 16038.

It is an arithmetic number, because the mean of its divisors is an integer number (4214430).

Almost surely, 2^64664346 is an apocalyptic number.

64664346 is an abundant number, since it is smaller than the sum of its proper divisors (70197414).

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

64664346 is a wasteful number, since it uses less digits than its factorization.

64664346 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4830.

The product of its digits is 248832, while the sum is 39.

The square root of 64664346 is about 8041.4144278230. The cubic root of 64664346 is about 401.3792925799.

The spelling of 64664346 in words is "sixty-four million, six hundred sixty-four thousand, three hundred forty-six".