978085 has 8 divisors (see below), whose sum is σ = 1180800. Its totient is φ = 777744.

The previous prime is 978079. The next prime is 978091. The reversal of 978085 is 580879.

978085 = T₈₀₆ + T₈₀₇ + T₈₀₈.

It is an interprime number because it is at equal distance from previous prime (978079) and next prime (978091).

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

It is a cyclic number.

It is not a de Polignac number, because 978085 - 2³ = 978077 is a prime.

It is a nialpdrome in base 16.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 504 + ... + 1486.

It is an arithmetic number, because the mean of its divisors is an integer number (147600).

2⁹⁷⁸⁰⁸⁵ is an apocalyptic number.

978085 is the 808-th centered triangular number.

It is an amenable number.

978085 is a deficient number, since it is larger than the sum of its proper divisors (202715).

978085 is a wasteful number, since it uses less digits than its factorization.

978085 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1187.

The product of its (nonzero) digits is 20160, while the sum is 37.

The square root of 978085 is about 988.9817996303. The cubic root of 978085 is about 99.2640977633.

The spelling of 978085 in words is "nine hundred seventy-eight thousand, eighty-five".