64320606 has 24 divisors (see below), whose sum is σ = 159270384. Its totient is φ = 18377280.

The previous prime is 64320593. The next prime is 64320611. The reversal of 64320606 is 60602346.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 64320606.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 255115 + ... + 255366.

It is an arithmetic number, because the mean of its divisors is an integer number (6636266).

Almost surely, 2^64320606 is an apocalyptic number.

64320606 is an abundant number, since it is smaller than the sum of its proper divisors (94949778).

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

64320606 is a wasteful number, since it uses less digits than its factorization.

64320606 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510496 (or 510493 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

The square root of 64320606 is about 8020.0128428825. The cubic root of 64320606 is about 400.6668169369. Note that the first 3 decimals are identical.

The spelling of 64320606 in words is "sixty-four million, three hundred twenty thousand, six hundred six".