68948971 has 16 divisors (see below), whose sum is σ = 86258368. Its totient is φ = 53654400.

The previous prime is 68948969. The next prime is 68948983. The reversal of 68948971 is 17984986.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 68948971 - 2¹ = 68948969 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68948911) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 660 + ... + 11761.

It is an arithmetic number, because the mean of its divisors is an integer number (5391148).

Almost surely, 2^68948971 is an apocalyptic number.

68948971 is a gapful number since it is divisible by the number (61) formed by its first and last digit.

68948971 is a deficient number, since it is larger than the sum of its proper divisors (17309397).

68948971 is a wasteful number, since it uses less digits than its factorization.

68948971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12502.

The product of its digits is 870912, while the sum is 52.

The square root of 68948971 is about 8303.5517099612. The cubic root of 68948971 is about 410.0554574994.

The spelling of 68948971 in words is "sixty-eight million, nine hundred forty-eight thousand, nine hundred seventy-one".