336889409 has 2 divisors, whose sum is σ = 336889410. Its totient is φ = 336889408.

The previous prime is 336889387. The next prime is 336889411. The reversal of 336889409 is 904988633.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 185722384 + 151167025 = 13628^2 + 12295^2 .

It is an emirp because it is prime and its reverse (904988633) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 336889409 - 2²⁸ = 68453953 is a prime.

It is a super-2 number, since 2×336889409² = 226988947792738562, which contains 22 as substring.

Together with 336889411, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (336889009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168444704 + 168444705.

It is an arithmetic number, because the mean of its divisors is an integer number (168444705).

Almost surely, 2^336889409 is an apocalyptic number.

It is an amenable number.

336889409 is a deficient number, since it is larger than the sum of its proper divisors (1).

336889409 is an equidigital number, since it uses as much as digits as its factorization.

336889409 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1119744, while the sum is 50.

The square root of 336889409 is about 18354.5473657075. The cubic root of 336889409 is about 695.8182030853.

The spelling of 336889409 in words is "three hundred thirty-six million, eight hundred eighty-nine thousand, four hundred nine".