246806009 has 2 divisors, whose sum is σ = 246806010. Its totient is φ = 246806008.

The previous prime is 246806003. The next prime is 246806039. The reversal of 246806009 is 900608642.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 204919225 + 41886784 = 14315^2 + 6472^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-246806009 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 246806009.

It is not a weakly prime, because it can be changed into another prime (246806003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123403004 + 123403005.

It is an arithmetic number, because the mean of its divisors is an integer number (123403005).

Almost surely, 2^246806009 is an apocalyptic number.

It is an amenable number.

246806009 is a deficient number, since it is larger than the sum of its proper divisors (1).

246806009 is an equidigital number, since it uses as much as digits as its factorization.

246806009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 35.

The square root of 246806009 is about 15710.0607573618. The cubic root of 246806009 is about 627.2662337766.

The spelling of 246806009 in words is "two hundred forty-six million, eight hundred six thousand, nine".