83278698 has 8 divisors (see below), whose sum is σ = 166557408. Its totient is φ = 27759564.

The previous prime is 83278697. The next prime is 83278711. The reversal of 83278698 is 89687238.

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

83278698 is an admirable number.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a self number, because there is not a number n which added to its sum of digits gives 83278698.

It is not an unprimeable number, because it can be changed into a prime (83278697) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6939886 + ... + 6939897.

It is an arithmetic number, because the mean of its divisors is an integer number (20819676).

Almost surely, 2^83278698 is an apocalyptic number.

83278698 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

83278698 is a wasteful number, since it uses less digits than its factorization.

83278698 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13879788.

The product of its digits is 1161216, while the sum is 51.

The square root of 83278698 is about 9125.7163006528. The cubic root of 83278698 is about 436.6947547795.

The spelling of 83278698 in words is "eighty-three million, two hundred seventy-eight thousand, six hundred ninety-eight".