68841790 has 16 divisors (see below), whose sum is σ = 126016560. Its totient is φ = 27069760.

The previous prime is 68841779. The next prime is 68841791. The reversal of 68841790 is 9714886.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68841791) 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, 57751 + ... + 58930.

It is an arithmetic number, because the mean of its divisors is an integer number (7876035).

Almost surely, 2^68841790 is an apocalyptic number.

68841790 is a deficient number, since it is larger than the sum of its proper divisors (57174770).

68841790 is a wasteful number, since it uses less digits than its factorization.

68841790 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116747.

The product of its (nonzero) digits is 96768, while the sum is 43.

The square root of 68841790 is about 8297.0952748537. The cubic root of 68841790 is about 409.8428705842.

The spelling of 68841790 in words is "sixty-eight million, eight hundred forty-one thousand, seven hundred ninety".