68775971 has 8 divisors (see below), whose sum is σ = 75255024. Its totient is φ = 62334720.

The previous prime is 68775947. The next prime is 68775979. The reversal of 68775971 is 17957786.

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 68775971 - 2¹⁰ = 68774947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68775979) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5570 + ... + 12983.

It is an arithmetic number, because the mean of its divisors is an integer number (9406878).

Almost surely, 2^68775971 is an apocalyptic number.

68775971 is a deficient number, since it is larger than the sum of its proper divisors (6479053).

68775971 is a wasteful number, since it uses less digits than its factorization.

68775971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18901.

The product of its digits is 740880, while the sum is 50.

The square root of 68775971 is about 8293.1279382390. The cubic root of 68775971 is about 409.7122132734.

The spelling of 68775971 in words is "sixty-eight million, seven hundred seventy-five thousand, nine hundred seventy-one".