68290641 has 32 divisors (see below), whose sum is σ = 104734080. Its totient is φ = 43944768.

The previous prime is 68290639. The next prime is 68290661. The reversal of 68290641 is 14609286.

68290641 is a `hidden beast` number, since 6 + 8 + 2 + 9 + 0 + 641 = 666.

It is not a de Polignac number, because 68290641 - 2¹ = 68290639 is a prime.

It is a super-2 number, since 2×68290641² = 9327223296381762, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68290596 and 68290605.

It is not an unprimeable number, because it can be changed into a prime (68290661) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 196630 + ... + 196976.

It is an arithmetic number, because the mean of its divisors is an integer number (3272940).

Almost surely, 2^68290641 is an apocalyptic number.

It is an amenable number.

68290641 is a deficient number, since it is larger than the sum of its proper divisors (36443439).

68290641 is a wasteful number, since it uses less digits than its factorization.

68290641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 590 (or 584 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The square root of 68290641 is about 8263.8151600819. The cubic root of 68290641 is about 408.7462014629.

The spelling of 68290641 in words is "sixty-eight million, two hundred ninety thousand, six hundred forty-one".