68320365 has 32 divisors (see below), whose sum is σ = 116816256. Its totient is φ = 33976320.

The previous prime is 68320363. The next prime is 68320381. The reversal of 68320365 is 56302386.

It is not a de Polignac number, because 68320365 - 2¹ = 68320363 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68320363) 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 31 ways as a sum of consecutive naturals, for example, 27630 + ... + 30000.

It is an arithmetic number, because the mean of its divisors is an integer number (3650508).

Almost surely, 2^68320365 is an apocalyptic number.

It is an amenable number.

68320365 is a deficient number, since it is larger than the sum of its proper divisors (48495891).

68320365 is a wasteful number, since it uses less digits than its factorization.

68320365 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2509.

The product of its (nonzero) digits is 25920, while the sum is 33.

The square root of 68320365 is about 8265.6134073643. The cubic root of 68320365 is about 408.8054961169.

The spelling of 68320365 in words is "sixty-eight million, three hundred twenty thousand, three hundred sixty-five".