978468 has 24 divisors (see below), whose sum is σ = 2319072. Its totient is φ = 321024.

The previous prime is 978463. The next prime is 978473. The reversal of 978468 is 864879.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (978463) and next prime (978473).

It is an Ulam number.

It is not an unprimeable number, because it can be changed into a prime (978463) 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, 196 + ... + 1412.

It is an arithmetic number, because the mean of its divisors is an integer number (96628).

2⁹⁷⁸⁴⁶⁸ is an apocalyptic number.

It is an amenable number.

978468 is an abundant number, since it is smaller than the sum of its proper divisors (1340604).

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

978468 is a wasteful number, since it uses less digits than its factorization.

978468 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1291 (or 1289 counting only the distinct ones).

The product of its digits is 96768, while the sum is 42.

The square root of 978468 is about 989.1754141708. The cubic root of 978468 is about 99.2770527342.

The spelling of 978468 in words is "nine hundred seventy-eight thousand, four hundred sixty-eight".