980845 has 4 divisors (see below), whose sum is σ = 1177020. Its totient is φ = 784672.

The previous prime is 980831. The next prime is 980851. The reversal of 980845 is 548089.

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

It can be written as a sum of positive squares in 2 ways, for example, as 443556 + 537289 = 666^2 + 733^2 .

It is a cyclic number.

It is not a de Polignac number, because 980845 - 2⁷ = 980717 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 980845.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 98080 + ... + 98089.

It is an arithmetic number, because the mean of its divisors is an integer number (294255).

2⁹⁸⁰⁸⁴⁵ is an apocalyptic number.

It is an amenable number.

980845 is a deficient number, since it is larger than the sum of its proper divisors (196175).

980845 is a wasteful number, since it uses less digits than its factorization.

980845 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196174.

The product of its (nonzero) digits is 11520, while the sum is 34.

The square root of 980845 is about 990.3761911516. The cubic root of 980845 is about 99.3573792314.

It can be divided in two parts, 98084 and 5, that added together give a palindrome (98089).

The spelling of 980845 in words is "nine hundred eighty thousand, eight hundred forty-five".