68320507 has 8 divisors (see below), whose sum is σ = 70044480. Its totient is φ = 66602760.

The previous prime is 68320489. The next prime is 68320513. The reversal of 68320507 is 70502386.

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

It is a cyclic number.

It is not a de Polignac number, because 68320507 - 2²³ = 59931899 is a prime.

It is a Duffinian 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 7 ways as a sum of consecutive naturals, for example, 27132 + ... + 29542.

It is an arithmetic number, because the mean of its divisors is an integer number (8755560).

Almost surely, 2^68320507 is an apocalyptic number.

68320507 is a deficient number, since it is larger than the sum of its proper divisors (1723973).

68320507 is a wasteful number, since it uses less digits than its factorization.

68320507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3113.

The product of its (nonzero) digits is 10080, while the sum is 31.

The square root of 68320507 is about 8265.6219971639. The cubic root of 68320507 is about 408.8057793430.

The spelling of 68320507 in words is "sixty-eight million, three hundred twenty thousand, five hundred seven".