978106 has 4 divisors (see below), whose sum is σ = 1467162. Its totient is φ = 489052.

The previous prime is 978091. The next prime is 978113. The reversal of 978106 is 601879.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 601879 = 37 ⋅16267.

It can be written as a sum of positive squares in only one way, i.e., 549081 + 429025 = 741^2 + 655^2 .

It is a Smith number, since the sum of its digits (31) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a nialpdrome in base 16.

It is a zygodrome in base 5.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 244525 + ... + 244528.

2⁹⁷⁸¹⁰⁶ is an apocalyptic number.

978106 is a deficient number, since it is larger than the sum of its proper divisors (489056).

978106 is a wasteful number, since it uses less digits than its factorization.

978106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 489055.

The product of its (nonzero) digits is 3024, while the sum is 31.

The square root of 978106 is about 988.9924165533. The cubic root of 978106 is about 99.2648081757.

The spelling of 978106 in words is "nine hundred seventy-eight thousand, one hundred six".