68276879 has 24 divisors (see below), whose sum is σ = 81333072. Its totient is φ = 56625920.

The previous prime is 68276869. The next prime is 68276893. The reversal of 68276879 is 97867286.

It is a happy number.

It is not a de Polignac number, because 68276879 - 2⁸ = 68276623 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (53).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 68276879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68276839) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 822572 + ... + 822654.

It is an arithmetic number, because the mean of its divisors is an integer number (3388878).

Almost surely, 2^68276879 is an apocalyptic number.

68276879 is a deficient number, since it is larger than the sum of its proper divisors (13056193).

68276879 is a wasteful number, since it uses less digits than its factorization.

68276879 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247 (or 164 counting only the distinct ones).

The product of its digits is 2032128, while the sum is 53.

The square root of 68276879 is about 8262.9824518754. The cubic root of 68276879 is about 408.7187426337.

The spelling of 68276879 in words is "sixty-eight million, two hundred seventy-six thousand, eight hundred seventy-nine".