278083 has 4 divisors (see below), whose sum is σ = 299488. Its totient is φ = 256680.

The previous prime is 278071. The next prime is 278087. The reversal of 278083 is 380872.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 278083 - 2⁵ = 278051 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 13.

It is not an unprimeable number, because it can be changed into a prime (278087) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10683 + ... + 10708.

It is an arithmetic number, because the mean of its divisors is an integer number (74872).

2²⁷⁸⁰⁸³ is an apocalyptic number.

278083 is a deficient number, since it is larger than the sum of its proper divisors (21405).

278083 is a wasteful number, since it uses less digits than its factorization.

278083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21404.

The product of its (nonzero) digits is 2688, while the sum is 28.

The square root of 278083 is about 527.3357564209. The cubic root of 278083 is about 65.2716833638.

The spelling of 278083 in words is "two hundred seventy-eight thousand, eighty-three".