68284641 has 4 divisors (see below), whose sum is σ = 91046192. Its totient is φ = 45523092.

The previous prime is 68284633. The next prime is 68284649. The reversal of 68284641 is 14648286.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (68284633) and next prime (68284649).

It is not a de Polignac number, because 68284641 - 2³ = 68284633 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 68284641.

It is not an unprimeable number, because it can be changed into a prime (68284649) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11380771 + ... + 11380776.

It is an arithmetic number, because the mean of its divisors is an integer number (22761548).

Almost surely, 2^68284641 is an apocalyptic number.

It is an amenable number.

68284641 is a deficient number, since it is larger than the sum of its proper divisors (22761551).

68284641 is a wasteful number, since it uses less digits than its factorization.

68284641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22761550.

The product of its digits is 73728, while the sum is 39.

The square root of 68284641 is about 8263.4521236587. The cubic root of 68284641 is about 408.7342303299.

The spelling of 68284641 in words is "sixty-eight million, two hundred eighty-four thousand, six hundred forty-one".