278093 has 8 divisors (see below), whose sum is σ = 295488. Its totient is φ = 261184.

The previous prime is 278087. The next prime is 278111. The reversal of 278093 is 390872.

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 278093 - 2⁶ = 278029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (278063) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2405 + ... + 2517.

It is an arithmetic number, because the mean of its divisors is an integer number (36936).

2²⁷⁸⁰⁹³ is an apocalyptic number.

278093 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

278093 is a deficient number, since it is larger than the sum of its proper divisors (17395).

278093 is a wasteful number, since it uses less digits than its factorization.

278093 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243.

The product of its (nonzero) digits is 3024, while the sum is 29.

The square root of 278093 is about 527.3452379609. The cubic root of 278093 is about 65.2724657549.

The spelling of 278093 in words is "two hundred seventy-eight thousand, ninety-three".