68510339 has 4 divisors (see below), whose sum is σ = 68542320. Its totient is φ = 68478360.

The previous prime is 68510317. The next prime is 68510359. The reversal of 68510339 is 93301586.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68510339 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68510299 and 68510308.

It is not an unprimeable number, because it can be changed into a prime (68510359) 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, 12527 + ... + 17144.

It is an arithmetic number, because the mean of its divisors is an integer number (17135580).

Almost surely, 2^68510339 is an apocalyptic number.

68510339 is a deficient number, since it is larger than the sum of its proper divisors (31981).

68510339 is a wasteful number, since it uses less digits than its factorization.

68510339 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31980.

The product of its (nonzero) digits is 19440, while the sum is 35.

The square root of 68510339 is about 8277.0972568890. The cubic root of 68510339 is about 409.1840584128.

The spelling of 68510339 in words is "sixty-eight million, five hundred ten thousand, three hundred thirty-nine".