978959369 has 2 divisors, whose sum is σ = 978959370. Its totient is φ = 978959368.

The previous prime is 978959257. The next prime is 978959383. The reversal of 978959369 is 963959879.

978959369 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 906913225 + 72046144 = 30115^2 + 8488^2 .

It is a cyclic number.

It is not a de Polignac number, because 978959369 - 2²⁴ = 962182153 is a prime.

It is a super-2 number, since 2×978959369² = 1916722892305756322, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (978959669) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489479684 + 489479685.

It is an arithmetic number, because the mean of its divisors is an integer number (489479685).

Almost surely, 2^978959369 is an apocalyptic number.

It is an amenable number.

978959369 is a deficient number, since it is larger than the sum of its proper divisors (1).

978959369 is an equidigital number, since it uses as much as digits as its factorization.

978959369 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 33067440, while the sum is 65.

The square root of 978959369 is about 31288.3264013913. The cubic root of 978959369 is about 992.9366833553.

The spelling of 978959369 in words is "nine hundred seventy-eight million, nine hundred fifty-nine thousand, three hundred sixty-nine".