68847995 has 4 divisors (see below), whose sum is σ = 82617600. Its totient is φ = 55078392.

The previous prime is 68847971. The next prime is 68848019. The reversal of 68847995 is 59974886.

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

It is an interprime number because it is at equal distance from previous prime (68847971) and next prime (68848019).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-68847995 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68847995.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 6884795 + ... + 6884804.

It is an arithmetic number, because the mean of its divisors is an integer number (20654400).

Almost surely, 2^68847995 is an apocalyptic number.

68847995 is a deficient number, since it is larger than the sum of its proper divisors (13769605).

68847995 is a wasteful number, since it uses less digits than its factorization.

68847995 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13769604.

The product of its digits is 4354560, while the sum is 56.

The square root of 68847995 is about 8297.4691924707. The cubic root of 68847995 is about 409.8551838347.

The spelling of 68847995 in words is "sixty-eight million, eight hundred forty-seven thousand, nine hundred ninety-five".