68105477 has 8 divisors (see below), whose sum is σ = 75699360. Its totient is φ = 60745360.

The previous prime is 68105473. The next prime is 68105497. The reversal of 68105477 is 77450186.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68105477 - 2² = 68105473 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68105477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68105473) 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 7 ways as a sum of consecutive naturals, for example, 57827 + ... + 58992.

It is an arithmetic number, because the mean of its divisors is an integer number (9462420).

Almost surely, 2^68105477 is an apocalyptic number.

It is an amenable number.

68105477 is a deficient number, since it is larger than the sum of its proper divisors (7593883).

68105477 is a wasteful number, since it uses less digits than its factorization.

68105477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116883.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 68105477 is about 8252.6042556274. The cubic root of 68105477 is about 408.3764407450.

The spelling of 68105477 in words is "sixty-eight million, one hundred five thousand, four hundred seventy-seven".