68320567 has 4 divisors (see below), whose sum is σ = 78080656. Its totient is φ = 58560480.

The previous prime is 68320519. The next prime is 68320573. The reversal of 68320567 is 76502386.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 76502386 = 2 ⋅38251193.

It is a cyclic number.

It is not a de Polignac number, because 68320567 - 2¹⁵ = 68287799 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68320597) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4880034 + ... + 4880047.

It is an arithmetic number, because the mean of its divisors is an integer number (19520164).

Almost surely, 2^68320567 is an apocalyptic number.

68320567 is a deficient number, since it is larger than the sum of its proper divisors (9760089).

68320567 is an equidigital number, since it uses as much as digits as its factorization.

68320567 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9760088.

The product of its (nonzero) digits is 60480, while the sum is 37.

The square root of 68320567 is about 8265.6256266540. The cubic root of 68320567 is about 408.8058990159.

The spelling of 68320567 in words is "sixty-eight million, three hundred twenty thousand, five hundred sixty-seven".