68280783 has 8 divisors (see below), whose sum is σ = 91112496. Its totient is φ = 45484800.

The previous prime is 68280757. The next prime is 68280787. The reversal of 68280783 is 38708286.

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

It is not a de Polignac number, because 68280783 - 2¹⁰ = 68279759 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68280787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4098 + ... + 12383.

It is an arithmetic number, because the mean of its divisors is an integer number (11389062).

Almost surely, 2^68280783 is an apocalyptic number.

68280783 is a deficient number, since it is larger than the sum of its proper divisors (22831713).

68280783 is a wasteful number, since it uses less digits than its factorization.

68280783 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17865.

The product of its (nonzero) digits is 129024, while the sum is 42.

The square root of 68280783 is about 8263.2186828136. The cubic root of 68280783 is about 408.7265325210.

The spelling of 68280783 in words is "sixty-eight million, two hundred eighty thousand, seven hundred eighty-three".