68491841 has 8 divisors (see below), whose sum is σ = 74962368. Its totient is φ = 62062000.

The previous prime is 68491811. The next prime is 68491859. The reversal of 68491841 is 14819486.

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

It is not a de Polignac number, because 68491841 - 2⁶ = 68491777 is a prime.

It is a super-2 number, since 2×68491841² = 9382264567138562, which contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68491811) 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, 6590 + ... + 13431.

It is an arithmetic number, because the mean of its divisors is an integer number (9370296).

Almost surely, 2^68491841 is an apocalyptic number.

It is an amenable number.

68491841 is a deficient number, since it is larger than the sum of its proper divisors (6470527).

68491841 is a wasteful number, since it uses less digits than its factorization.

68491841 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20343.

The product of its digits is 55296, while the sum is 41.

The square root of 68491841 is about 8275.9797607292. The cubic root of 68491841 is about 409.1472281176.

The spelling of 68491841 in words is "sixty-eight million, four hundred ninety-one thousand, eight hundred forty-one".