9489979 has 2 divisors, whose sum is σ = 9489980. Its totient is φ = 9489978.

The previous prime is 9489967. The next prime is 9490001. The reversal of 9489979 is 9799849.

9489979 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 an emirp because it is prime and its reverse (9799849) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 9489979 - 2²³ = 1101371 is a prime.

9489979 is a lucky number.

It is not a weakly prime, because it can be changed into another prime (9480979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4744989 + 4744990.

It is an arithmetic number, because the mean of its divisors is an integer number (4744990).

Almost surely, 2^9489979 is an apocalyptic number.

9489979 is a deficient number, since it is larger than the sum of its proper divisors (1).

9489979 is an equidigital number, since it uses as much as digits as its factorization.

9489979 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1469664, while the sum is 55.

The square root of 9489979 is about 3080.5809517038. The cubic root of 9489979 is about 211.7166842620.

The spelling of 9489979 in words is "nine million, four hundred eighty-nine thousand, nine hundred seventy-nine".