68466621 has 12 divisors (see below), whose sum is σ = 93468768. Its totient is φ = 44579304.

The previous prime is 68466581. The next prime is 68466623. The reversal of 68466621 is 12666486.

It is not a de Polignac number, because 68466621 - 2¹¹ = 68464573 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68466621.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68466623) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 625 + ... + 11718.

It is an arithmetic number, because the mean of its divisors is an integer number (7789064).

Almost surely, 2^68466621 is an apocalyptic number.

It is an amenable number.

68466621 is a deficient number, since it is larger than the sum of its proper divisors (25002147).

68466621 is a wasteful number, since it uses less digits than its factorization.

68466621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12432 (or 12389 counting only the distinct ones).

The product of its digits is 82944, while the sum is 39.

The square root of 68466621 is about 8274.4559337759. The cubic root of 68466621 is about 409.0970033525.

The spelling of 68466621 in words is "sixty-eight million, four hundred sixty-six thousand, six hundred twenty-one".