9950879 has 2 divisors, whose sum is σ = 9950880.
Its totient is φ = 9950878.
The previous prime is 9950873. The next prime is 9950911. The reversal of 9950879 is 9780599.
It is a weak prime.
It is an emirp because it is prime and its reverse (9780599) is a distict prime.
It is a cyclic number.
It is a de Polignac number, because none of the positive numbers 2k-9950879 is a prime.
It is a congruent number.
It is not a weakly prime, because it can be changed into another prime (9950873) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4975439 + 4975440.
It is an arithmetic number, because the mean of its divisors is an integer number (4975440).
Almost surely, 29950879 is an apocalyptic number.
9950879 is a deficient number, since it is larger than the sum of its proper divisors (1).
9950879 is an equidigital number, since it uses as much as digits as its factorization.
9950879 is an evil number, because the sum of its binary digits is even.
The product of its (nonzero) digits is 204120, while the sum is 47.
The square root of 9950879 is about 3154.5013869073.
The cubic root of 9950879 is about 215.0901298697.
The spelling of 9950879 in words is "nine million, nine hundred fifty thousand, eight hundred seventy-nine".