978004 has 12 divisors (see below), whose sum is σ = 1724800. Its totient is φ = 485208.

The previous prime is 978001. The next prime is 978007. The reversal of 978004 is 400879.

It is an interprime number because it is at equal distance from previous prime (978001) and next prime (978007).

It is a nialpdrome in base 16.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978001) 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 3 ways as a sum of consecutive naturals, for example, 324 + ... + 1435.

2⁹⁷⁸⁰⁰⁴ is an apocalyptic number.

It is an amenable number.

978004 is a deficient number, since it is larger than the sum of its proper divisors (746796).

978004 is a wasteful number, since it uses less digits than its factorization.

978004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1902 (or 1900 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 28.

The square root of 978004 is about 988.9408475738. The cubic root of 978004 is about 99.2613575059.

The spelling of 978004 in words is "nine hundred seventy-eight thousand, four".