278832083 has 4 divisors (see below), whose sum is σ = 279674808. Its totient is φ = 277989360.

The previous prime is 278832061. The next prime is 278832119. The reversal of 278832083 is 380238872.

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 278832083 - 2¹⁴ = 278815699 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 278832083.

It is not an unprimeable number, because it can be changed into a prime (278832023) 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, 420866 + ... + 421527.

It is an arithmetic number, because the mean of its divisors is an integer number (69918702).

Almost surely, 2^278832083 is an apocalyptic number.

278832083 is a deficient number, since it is larger than the sum of its proper divisors (842725).

278832083 is an equidigital number, since it uses as much as digits as its factorization.

278832083 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 842724.

The product of its (nonzero) digits is 129024, while the sum is 41.

The square root of 278832083 is about 16698.2658680475. The cubic root of 278832083 is about 653.3023910851.

The spelling of 278832083 in words is "two hundred seventy-eight million, eight hundred thirty-two thousand, eighty-three".