978233 has 2 divisors, whose sum is σ = 978234. Its totient is φ = 978232.

The previous prime is 978223. The next prime is 978239. The reversal of 978233 is 332879.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 937024 + 41209 = 968^2 + 203^2 .

It is a cyclic number.

It is not a de Polignac number, because 978233 - 2⁴ = 978217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 978233.

It is not a weakly prime, because it can be changed into another prime (978239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489116 + 489117.

It is an arithmetic number, because the mean of its divisors is an integer number (489117).

2⁹⁷⁸²³³ is an apocalyptic number.

It is an amenable number.

978233 is a deficient number, since it is larger than the sum of its proper divisors (1).

978233 is an equidigital number, since it uses as much as digits as its factorization.

978233 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 9072, while the sum is 32.

The square root of 978233 is about 989.0566212306. The cubic root of 978233 is about 99.2691042626.

It can be divided in two parts, 9782 and 33, that multiplied together give a triangular number (322806 = T₈₀₃).

The spelling of 978233 in words is "nine hundred seventy-eight thousand, two hundred thirty-three".