68457966 has 16 divisors (see below), whose sum is σ = 137789904. Its totient is φ = 22673664.

The previous prime is 68457937. The next prime is 68457967. The reversal of 68457966 is 66975486.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68457967) 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 7 ways as a sum of consecutive naturals, for example, 35395 + ... + 37278.

It is an arithmetic number, because the mean of its divisors is an integer number (8611869).

Almost surely, 2^68457966 is an apocalyptic number.

68457966 is an abundant number, since it is smaller than the sum of its proper divisors (69331938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68457966 is a wasteful number, since it uses less digits than its factorization.

68457966 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72835.

The product of its digits is 2177280, while the sum is 51.

The square root of 68457966 is about 8273.9329221356. The cubic root of 68457966 is about 409.0797643743.

The spelling of 68457966 in words is "sixty-eight million, four hundred fifty-seven thousand, nine hundred sixty-six".