979636423 has 2 divisors, whose sum is σ = 979636424. Its totient is φ = 979636422.

The previous prime is 979636397. The next prime is 979636451. The reversal of 979636423 is 324636979.

It is a weak prime.

It is an emirp because it is prime and its reverse (324636979) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 979636423 - 2⁹ = 979635911 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (979636223) by changing a digit.

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, 489818211 + 489818212.

It is an arithmetic number, because the mean of its divisors is an integer number (489818212).

Almost surely, 2^979636423 is an apocalyptic number.

979636423 is a deficient number, since it is larger than the sum of its proper divisors (1).

979636423 is an equidigital number, since it uses as much as digits as its factorization.

979636423 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1469664, while the sum is 49.

The square root of 979636423 is about 31299.1441256786. The cubic root of 979636423 is about 993.1655375351.

The spelling of 979636423 in words is "nine hundred seventy-nine million, six hundred thirty-six thousand, four hundred twenty-three".