68654879 has 4 divisors (see below), whose sum is σ = 69115800. Its totient is φ = 68193960.

The previous prime is 68654843. The next prime is 68654897. The reversal of 68654879 is 97845686.

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

It is a cyclic number.

It is not a de Polignac number, because 68654879 - 2¹² = 68650783 is a prime.

It is a super-3 number, since 3×68654879³ (a number of 24 digits) contains 333 as substring.

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 68654879.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68654899) 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, 230237 + ... + 230534.

It is an arithmetic number, because the mean of its divisors is an integer number (17278950).

Almost surely, 2^68654879 is an apocalyptic number.

68654879 is a deficient number, since it is larger than the sum of its proper divisors (460921).

68654879 is a wasteful number, since it uses less digits than its factorization.

68654879 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460920.

The product of its digits is 2903040, while the sum is 53.

The square root of 68654879 is about 8285.8239783379. The cubic root of 68654879 is about 409.4716155933.

The spelling of 68654879 in words is "sixty-eight million, six hundred fifty-four thousand, eight hundred seventy-nine".