978113 has 2 divisors, whose sum is σ = 978114. Its totient is φ = 978112.

The previous prime is 978091. The next prime is 978149. The reversal of 978113 is 311879.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 559504 + 418609 = 748^2 + 647^2 .

It is a cyclic number.

It is not a de Polignac number, because 978113 - 2⁶ = 978049 is a prime.

It is a nialpdrome in base 16.

It is not a weakly prime, because it can be changed into another prime (978413) 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 as a sum of consecutive naturals, namely, 489056 + 489057.

It is an arithmetic number, because the mean of its divisors is an integer number (489057).

2⁹⁷⁸¹¹³ is an apocalyptic number.

It is an amenable number.

978113 is a deficient number, since it is larger than the sum of its proper divisors (1).

978113 is an equidigital number, since it uses as much as digits as its factorization.

978113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1512, while the sum is 29.

The square root of 978113 is about 988.9959555023. The cubic root of 978113 is about 99.2650449776.

The spelling of 978113 in words is "nine hundred seventy-eight thousand, one hundred thirteen".