996905879 has 2 divisors, whose sum is σ = 996905880. Its totient is φ = 996905878.

The previous prime is 996905873. The next prime is 996905893. The reversal of 996905879 is 978509699.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 996905879 - 2⁴ = 996905863 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (996905873) 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, 498452939 + 498452940.

It is an arithmetic number, because the mean of its divisors is an integer number (498452940).

Almost surely, 2^996905879 is an apocalyptic number.

996905879 is a deficient number, since it is larger than the sum of its proper divisors (1).

996905879 is an equidigital number, since it uses as much as digits as its factorization.

996905879 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 11022480, while the sum is 62.

The square root of 996905879 is about 31573.8163515277. The cubic root of 996905879 is about 998.9675607694.

The spelling of 996905879 in words is "nine hundred ninety-six million, nine hundred five thousand, eight hundred seventy-nine".