68884971 has 4 divisors (see below), whose sum is σ = 91846632. Its totient is φ = 45923312.

The previous prime is 68884957. The next prime is 68884973. The reversal of 68884971 is 17948886.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 68884971 - 2¹³ = 68876779 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68884973) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11480826 + ... + 11480831.

It is an arithmetic number, because the mean of its divisors is an integer number (22961658).

Almost surely, 2^68884971 is an apocalyptic number.

68884971 is a deficient number, since it is larger than the sum of its proper divisors (22961661).

68884971 is a wasteful number, since it uses less digits than its factorization.

68884971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22961660.

The product of its digits is 774144, while the sum is 51.

The square root of 68884971 is about 8299.6970426637. The cubic root of 68884971 is about 409.9285439620.

The spelling of 68884971 in words is "sixty-eight million, eight hundred eighty-four thousand, nine hundred seventy-one".