68276881 has 4 divisors (see below), whose sum is σ = 68495332. Its totient is φ = 68058432.

The previous prime is 68276869. The next prime is 68276893. The reversal of 68276881 is 18867286.

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 (68276869) and next prime (68276893).

It can be written as a sum of positive squares in 2 ways, for example, as 22240656 + 46036225 = 4716^2 + 6785^2 .

It is a cyclic number.

It is not a de Polignac number, because 68276881 - 2⁷ = 68276753 is a prime.

It is a super-2 number, since 2×68276881² = 9323464958176322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68276821) 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, 108756 + ... + 109381.

It is an arithmetic number, because the mean of its divisors is an integer number (17123833).

Almost surely, 2^68276881 is an apocalyptic number.

It is an amenable number.

68276881 is a deficient number, since it is larger than the sum of its proper divisors (218451).

68276881 is a wasteful number, since it uses less digits than its factorization.

68276881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218450.

The product of its digits is 258048, while the sum is 46.

The square root of 68276881 is about 8262.9825728970. The cubic root of 68276881 is about 408.7187466245.

The spelling of 68276881 in words is "sixty-eight million, two hundred seventy-six thousand, eight hundred eighty-one".