999954979 has 2 divisors, whose sum is σ = 999954980. Its totient is φ = 999954978.

The previous prime is 999954973. The next prime is 999955013. The reversal of 999954979 is 979459999.

999954979 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 999954979 - 2¹⁵ = 999922211 is a prime.

It is not a weakly prime, because it can be changed into another prime (999954973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 499977489 + 499977490.

It is an arithmetic number, because the mean of its divisors is an integer number (499977490).

Almost surely, 2^999954979 is an apocalyptic number.

999954979 is a deficient number, since it is larger than the sum of its proper divisors (1).

999954979 is an equidigital number, since it uses as much as digits as its factorization.

999954979 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 74401740, while the sum is 70.

The square root of 999954979 is about 31622.0647491589. The cubic root of 999954979 is about 999.9849927748.

The spelling of 999954979 in words is "nine hundred ninety-nine million, nine hundred fifty-four thousand, nine hundred seventy-nine".