68818477 has 8 divisors (see below), whose sum is σ = 84699776. Its totient is φ = 54449712.

The previous prime is 68818423. The next prime is 68818531. The reversal of 68818477 is 77481886.

It is an interprime number because it is at equal distance from previous prime (68818423) and next prime (68818531).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68818477 - 2²³ = 60429869 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68818477.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68818177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 378033 + ... + 378214.

It is an arithmetic number, because the mean of its divisors is an integer number (10587472).

Almost surely, 2^68818477 is an apocalyptic number.

It is an amenable number.

68818477 is a deficient number, since it is larger than the sum of its proper divisors (15881299).

68818477 is a wasteful number, since it uses less digits than its factorization.

68818477 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 756267.

The product of its digits is 602112, while the sum is 49.

The square root of 68818477 is about 8295.6902666385. The cubic root of 68818477 is about 409.7966014716.

The spelling of 68818477 in words is "sixty-eight million, eight hundred eighteen thousand, four hundred seventy-seven".