68823871 has 16 divisors (see below), whose sum is σ = 78593760. Its totient is φ = 59857920.

The previous prime is 68823869. The next prime is 68823899. The reversal of 68823871 is 17832886.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 68823871 - 2¹ = 68823869 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68823971) 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, 10645 + ... + 15841.

It is an arithmetic number, because the mean of its divisors is an integer number (4912110).

Almost surely, 2^68823871 is an apocalyptic number.

68823871 is a deficient number, since it is larger than the sum of its proper divisors (9769889).

68823871 is a wasteful number, since it uses less digits than its factorization.

68823871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5274.

The product of its digits is 129024, while the sum is 43.

The square root of 68823871 is about 8296.0153688382. The cubic root of 68823871 is about 409.8073078265.

The spelling of 68823871 in words is "sixty-eight million, eight hundred twenty-three thousand, eight hundred seventy-one".