978048823 has 2 divisors, whose sum is σ = 978048824. Its totient is φ = 978048822.

The previous prime is 978048821. The next prime is 978048833. The reversal of 978048823 is 328840879.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 978048823 - 2¹ = 978048821 is a prime.

Together with 978048821, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (978048821) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489024411 + 489024412.

It is an arithmetic number, because the mean of its divisors is an integer number (489024412).

Almost surely, 2^978048823 is an apocalyptic number.

978048823 is a deficient number, since it is larger than the sum of its proper divisors (1).

978048823 is an equidigital number, since it uses as much as digits as its factorization.

978048823 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 774144, while the sum is 49.

The square root of 978048823 is about 31273.7721261763. The cubic root of 978048823 is about 992.6287390186.

The spelling of 978048823 in words is "nine hundred seventy-eight million, forty-eight thousand, eight hundred twenty-three".