978941 has 4 divisors (see below), whose sum is σ = 981084. Its totient is φ = 976800.

The previous prime is 978931. The next prime is 978947. The reversal of 978941 is 149879.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 149879 = 67 ⋅2237.

It can be written as a sum of positive squares in 2 ways, for example, as 606841 + 372100 = 779^2 + 610^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-978941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 978895 and 978904.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (978947) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 80 + ... + 1401.

It is an arithmetic number, because the mean of its divisors is an integer number (245271).

2⁹⁷⁸⁹⁴¹ is an apocalyptic number.

It is an amenable number.

978941 is a deficient number, since it is larger than the sum of its proper divisors (2143).

978941 is a wasteful number, since it uses less digits than its factorization.

978941 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2142.

The product of its digits is 18144, while the sum is 38.

The square root of 978941 is about 989.4144733124. The cubic root of 978941 is about 99.2930472894.

The spelling of 978941 in words is "nine hundred seventy-eight thousand, nine hundred forty-one".