68345683 has 4 divisors (see below), whose sum is σ = 78109360. Its totient is φ = 58582008.

The previous prime is 68345639. The next prime is 68345687. The reversal of 68345683 is 38654386.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 38654386 = 2 ⋅19327193.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68345683 is a prime.

It is a super-2 number, since 2×68345683² = 9342264769472978, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (68345687) 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, 4881828 + ... + 4881841.

It is an arithmetic number, because the mean of its divisors is an integer number (19527340).

Almost surely, 2^68345683 is an apocalyptic number.

68345683 is a deficient number, since it is larger than the sum of its proper divisors (9763677).

68345683 is an equidigital number, since it uses as much as digits as its factorization.

68345683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9763676.

The product of its digits is 414720, while the sum is 43.

The square root of 68345683 is about 8267.1447912807. The cubic root of 68345683 is about 408.8559879398.

The spelling of 68345683 in words is "sixty-eight million, three hundred forty-five thousand, six hundred eighty-three".