979382009 has 2 divisors, whose sum is σ = 979382010. Its totient is φ = 979382008.

The previous prime is 979382003. The next prime is 979382017. The reversal of 979382009 is 900283979.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 563017984 + 416364025 = 23728^2 + 20405^2 .

It is a cyclic number.

It is not a de Polignac number, because 979382009 - 2¹⁶ = 979316473 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (979382003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 489691004 + 489691005.

It is an arithmetic number, because the mean of its divisors is an integer number (489691005).

Almost surely, 2^979382009 is an apocalyptic number.

It is an amenable number.

979382009 is a deficient number, since it is larger than the sum of its proper divisors (1).

979382009 is an equidigital number, since it uses as much as digits as its factorization.

979382009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 244944, while the sum is 47.

The square root of 979382009 is about 31295.0796292325. The cubic root of 979382009 is about 993.0795542432.

The spelling of 979382009 in words is "nine hundred seventy-nine million, three hundred eighty-two thousand, nine".