68921083 has 8 divisors (see below), whose sum is σ = 85927680. Its totient is φ = 53704680.

The previous prime is 68921071. The next prime is 68921089. The reversal of 68921083 is 38012986.

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 68921083 - 2⁹ = 68920571 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68921089) 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, 447463 + ... + 447616.

It is an arithmetic number, because the mean of its divisors is an integer number (10740960).

Almost surely, 2^68921083 is an apocalyptic number.

68921083 is a deficient number, since it is larger than the sum of its proper divisors (17006597).

68921083 is a wasteful number, since it uses less digits than its factorization.

68921083 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 895097.

The product of its (nonzero) digits is 20736, while the sum is 37.

The square root of 68921083 is about 8301.8722587137. The cubic root of 68921083 is about 410.0001645845. Note that the first 3 decimals are identical.

The spelling of 68921083 in words is "sixty-eight million, nine hundred twenty-one thousand, eighty-three".