978065 has 8 divisors (see below), whose sum is σ = 1280448. Its totient is φ = 711280.

The previous prime is 978053. The next prime is 978067. The reversal of 978065 is 560879.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 978065 - 2⁴ = 978049 is a prime.

It is a super-2 number, since 2×978065² = 1913222288450, which contains 22 as substring.

It is a Duffinian number.

It is a nialpdrome in base 16.

It is an inconsummate number, since it does not exist a number n which divided by its sum of digits gives 978065.

It is not an unprimeable number, because it can be changed into a prime (978067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8837 + ... + 8946.

It is an arithmetic number, because the mean of its divisors is an integer number (160056).

2⁹⁷⁸⁰⁶⁵ is an apocalyptic number.

It is an amenable number.

978065 is a deficient number, since it is larger than the sum of its proper divisors (302383).

978065 is a wasteful number, since it uses less digits than its factorization.

978065 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17799.

The product of its (nonzero) digits is 15120, while the sum is 35.

The square root of 978065 is about 988.9716881691. The cubic root of 978065 is about 99.2634211706.

The spelling of 978065 in words is "nine hundred seventy-eight thousand, sixty-five".