68091477 has 16 divisors (see below), whose sum is σ = 100310400. Its totient is φ = 40865792.

The previous prime is 68091461. The next prime is 68091481. The reversal of 68091477 is 77419086.

It is a cyclic number.

It is not a de Polignac number, because 68091477 - 2⁴ = 68091461 is a prime.

It is a Smith number, since the sum of its digits (42) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68091377) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 27852 + ... + 30197.

It is an arithmetic number, because the mean of its divisors is an integer number (6269400).

Almost surely, 2^68091477 is an apocalyptic number.

It is an amenable number.

68091477 is a deficient number, since it is larger than the sum of its proper divisors (32218923).

68091477 is a wasteful number, since it uses less digits than its factorization.

68091477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58092.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 68091477 is about 8251.7559949383. The cubic root of 68091477 is about 408.3484563976.

The spelling of 68091477 in words is "sixty-eight million, ninety-one thousand, four hundred seventy-seven".