68719 has 4 divisors (see below), whose sum is σ = 78544. Its totient is φ = 58896.

The previous prime is 68713. The next prime is 68729. The reversal of 68719 is 91786.

68719 = T₉₂ + T₉₃ + ... + T₁₀₅.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91786 = 2 ⋅45893.

It is a cyclic number.

It is not a de Polignac number, because 68719 - 2³ = 68711 is a prime.

It is a super-2 number, since 2×68719² = 9444601922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68711) 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, 4902 + ... + 4915.

It is an arithmetic number, because the mean of its divisors is an integer number (19636).

2⁶⁸⁷¹⁹ is an apocalyptic number.

68719 is a deficient number, since it is larger than the sum of its proper divisors (9825).

68719 is an equidigital number, since it uses as much as digits as its factorization.

68719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9824.

The product of its digits is 3024, while the sum is 31.

The square root of 68719 is about 262.1430906967. The cubic root of 68719 is about 40.9599052808.

It can be divided in two parts, 68 and 719, that added together give a palindrome (787).

The spelling of 68719 in words is "sixty-eight thousand, seven hundred nineteen".