10979209 has 2 divisors, whose sum is σ = 10979210. Its totient is φ = 10979208.

The previous prime is 10979173. The next prime is 10979219. The reversal of 10979209 is 90297901.

10979209 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7728400 + 3250809 = 2780^2 + 1803^2 .

It is a cyclic number.

It is not a de Polignac number, because 10979209 - 2¹³ = 10971017 is a prime.

It is not a weakly prime, because it can be changed into another prime (10979219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5489604 + 5489605.

It is an arithmetic number, because the mean of its divisors is an integer number (5489605).

Almost surely, 2^10979209 is an apocalyptic number.

It is an amenable number.

10979209 is a deficient number, since it is larger than the sum of its proper divisors (1).

10979209 is an equidigital number, since it uses as much as digits as its factorization.

10979209 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 10979209 is about 3313.4889467146. The cubic root of 10979209 is about 222.2578032008.

The spelling of 10979209 in words is "ten million, nine hundred seventy-nine thousand, two hundred nine".