980851 has 2 divisors, whose sum is σ = 980852. Its totient is φ = 980850.

The previous prime is 980831. The next prime is 980887. The reversal of 980851 is 158089.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-980851 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (980801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 490425 + 490426.

It is an arithmetic number, because the mean of its divisors is an integer number (490426).

2⁹⁸⁰⁸⁵¹ is an apocalyptic number.

980851 is a deficient number, since it is larger than the sum of its proper divisors (1).

980851 is an equidigital number, since it uses as much as digits as its factorization.

980851 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2880, while the sum is 31.

The square root of 980851 is about 990.3792202990. The cubic root of 980851 is about 99.3575818265.

The spelling of 980851 in words is "nine hundred eighty thousand, eight hundred fifty-one".