68783143 has 8 divisors (see below), whose sum is σ = 80808336. Its totient is φ = 57720000.

The previous prime is 68783123. The next prime is 68783147. The reversal of 68783143 is 34138786.

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

It is not a de Polignac number, because 68783143 - 2¹⁷ = 68652071 is a prime.

It is a super-2 number, since 2×68783143² = 9462241521916898, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68783096 and 68783105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68783147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 240358 + ... + 240643.

It is an arithmetic number, because the mean of its divisors is an integer number (10101042).

Almost surely, 2^68783143 is an apocalyptic number.

68783143 is a deficient number, since it is larger than the sum of its proper divisors (12025193).

68783143 is a wasteful number, since it uses less digits than its factorization.

68783143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481025.

The product of its digits is 96768, while the sum is 40.

The square root of 68783143 is about 8293.5603331742. The cubic root of 68783143 is about 409.7264544578.

The spelling of 68783143 in words is "sixty-eight million, seven hundred eighty-three thousand, one hundred forty-three".