978030 has 24 divisors (see below), whose sum is σ = 2543112. Its totient is φ = 260784.

The previous prime is 978017. The next prime is 978031. The reversal of 978030 is 30879.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 977985 and 978003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5344 + ... + 5523.

It is an arithmetic number, because the mean of its divisors is an integer number (105963).

2⁹⁷⁸⁰³⁰ is an apocalyptic number.

978030 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

978030 is an abundant number, since it is smaller than the sum of its proper divisors (1565082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

978030 is a wasteful number, since it uses less digits than its factorization.

978030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10880 (or 10877 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 27.

The square root of 978030 is about 988.9539928632. The cubic root of 978030 is about 99.2622371112.

The spelling of 978030 in words is "nine hundred seventy-eight thousand, thirty".