68406573 has 16 divisors (see below), whose sum is σ = 95429376. Its totient is φ = 43541760.

The previous prime is 68406571. The next prime is 68406581. The reversal of 68406573 is 37560486.

It is not a de Polignac number, because 68406573 - 2¹ = 68406571 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68406571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 136 + ... + 11697.

It is an arithmetic number, because the mean of its divisors is an integer number (5964336).

Almost surely, 2^68406573 is an apocalyptic number.

It is an amenable number.

68406573 is a deficient number, since it is larger than the sum of its proper divisors (27022803).

68406573 is a wasteful number, since it uses less digits than its factorization.

68406573 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11924.

The product of its (nonzero) digits is 120960, while the sum is 39.

The square root of 68406573 is about 8270.8266213239. The cubic root of 68406573 is about 408.9773701569.

The spelling of 68406573 in words is "sixty-eight million, four hundred six thousand, five hundred seventy-three".