63320705 has 8 divisors (see below), whose sum is σ = 86839872. Its totient is φ = 43419888.

The previous prime is 63320683. The next prime is 63320723. The reversal of 63320705 is 50702336.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63320705 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 904547 + ... + 904616.

It is an arithmetic number, because the mean of its divisors is an integer number (10854984).

Almost surely, 2^63320705 is an apocalyptic number.

It is an amenable number.

63320705 is a deficient number, since it is larger than the sum of its proper divisors (23519167).

63320705 is a wasteful number, since it uses less digits than its factorization.

63320705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1809175.

The product of its (nonzero) digits is 3780, while the sum is 26.

The square root of 63320705 is about 7957.4308039718. The cubic root of 63320705 is about 398.5797653856.

The spelling of 63320705 in words is "sixty-three million, three hundred twenty thousand, seven hundred five".