980865 has 24 divisors (see below), whose sum is σ = 1729728. Its totient is φ = 514080.

The previous prime is 980851. The next prime is 980887. The reversal of 980865 is 568089.

It is not a de Polignac number, because 980865 - 2⁶ = 980801 is a prime.

It is a super-2 number, since 2×980865² = 1924192296450, which contains 22 as substring.

It is a plaindrome in base 7.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 980865.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3042 + ... + 3348.

It is an arithmetic number, because the mean of its divisors is an integer number (72072).

2⁹⁸⁰⁸⁶⁵ is an apocalyptic number.

It is an amenable number.

980865 is a deficient number, since it is larger than the sum of its proper divisors (748863).

980865 is a wasteful number, since it uses less digits than its factorization.

980865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 389 (or 386 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 36.

The square root of 980865 is about 990.3862882734. The cubic root of 980865 is about 99.3580545451.

The spelling of 980865 in words is "nine hundred eighty thousand, eight hundred sixty-five".