68841091 has 8 divisors (see below), whose sum is σ = 76931568. Its totient is φ = 61056000.

The previous prime is 68841077. The next prime is 68841121. The reversal of 68841091 is 19014886.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 68841091 - 2⁷ = 68840963 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68841091.

It is not an unprimeable number, because it can be changed into a prime (68841391) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75870 + ... + 76771.

It is an arithmetic number, because the mean of its divisors is an integer number (9616446).

Almost surely, 2^68841091 is an apocalyptic number.

68841091 is a deficient number, since it is larger than the sum of its proper divisors (8090477).

68841091 is a wasteful number, since it uses less digits than its factorization.

68841091 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152693.

The product of its (nonzero) digits is 13824, while the sum is 37.

The square root of 68841091 is about 8297.0531515713. The cubic root of 68841091 is about 409.8414834368.

The spelling of 68841091 in words is "sixty-eight million, eight hundred forty-one thousand, ninety-one".