278098 has 8 divisors (see below), whose sum is σ = 419760. Its totient is φ = 138180.

The previous prime is 278087. The next prime is 278111. The reversal of 278098 is 890872.

It is a happy number.

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

It is a nialpdrome in base 13.

It is an unprimeable number.

278098 is an untouchable number, because it is not equal to the sum of proper divisors of any number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 93 + ... + 751.

It is an arithmetic number, because the mean of its divisors is an integer number (52470).

2²⁷⁸⁰⁹⁸ is an apocalyptic number.

278098 is a deficient number, since it is larger than the sum of its proper divisors (141662).

278098 is a wasteful number, since it uses less digits than its factorization.

278098 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 872.

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 278098 is about 527.3499786669. The cubic root of 278098 is about 65.2728569434.

The spelling of 278098 in words is "two hundred seventy-eight thousand, ninety-eight".