278696 has 16 divisors (see below), whose sum is σ = 570240. Its totient is φ = 126640.

The previous prime is 278689. The next prime is 278701. The reversal of 278696 is 696872.

278696 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a plaindrome in base 15.

It is a congruent number.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 278696.

It is an unprimeable number.

278696 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a pernicious number, because its binary representation contains a prime number (5) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1496 + ... + 1671.

It is an arithmetic number, because the mean of its divisors is an integer number (35640).

2²⁷⁸⁶⁹⁶ is an apocalyptic number.

It is an amenable number.

278696 is an abundant number, since it is smaller than the sum of its proper divisors (291544).

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

278696 is a wasteful number, since it uses less digits than its factorization.

278696 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3184 (or 3180 counting only the distinct ones).

The product of its digits is 36288, while the sum is 38.

The square root of 278696 is about 527.9166600895. The cubic root of 278696 is about 65.3196093159.

It can be divided in two parts, 2786 and 96, that added together give a palindrome (2882).

The spelling of 278696 in words is "two hundred seventy-eight thousand, six hundred ninety-six".