2392009 has 2 divisors, whose sum is σ = 2392010. Its totient is φ = 2392008.

The previous prime is 2392003. The next prime is 2392021. The reversal of 2392009 is 9002932.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1814409 + 577600 = 1347^2 + 760^2 .

It is a cyclic number.

It is not a de Polignac number, because 2392009 - 2³ = 2392001 is a prime.

2392009 is a lucky number.

It is a nialpdrome in base 12.

It is not a weakly prime, because it can be changed into another prime (2392001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1196004 + 1196005.

It is an arithmetic number, because the mean of its divisors is an integer number (1196005).

2^2392009 is an apocalyptic number.

It is an amenable number.

2392009 is a deficient number, since it is larger than the sum of its proper divisors (1).

2392009 is an equidigital number, since it uses as much as digits as its factorization.

2392009 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 25.

The square root of 2392009 is about 1546.6121039226. The cubic root of 2392009 is about 133.7378292707.

The spelling of 2392009 in words is "two million, three hundred ninety-two thousand, nine".