336942509 has 2 divisors, whose sum is σ = 336942510. Its totient is φ = 336942508.

The previous prime is 336942497. The next prime is 336942521. The reversal of 336942509 is 905249633.

It is a balanced prime because it is at equal distance from previous prime (336942497) and next prime (336942521).

It can be written as a sum of positive squares in only one way, i.e., 332332900 + 4609609 = 18230^2 + 2147^2 .

It is an emirp because it is prime and its reverse (905249633) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 336942509 - 2²⁸ = 68507053 is a prime.

It is a super-2 number, since 2×336942509² = 227060508742430162, which contains 22 as substring.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (336941509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168471254 + 168471255.

It is an arithmetic number, because the mean of its divisors is an integer number (168471255).

Almost surely, 2^336942509 is an apocalyptic number.

It is an amenable number.

336942509 is a deficient number, since it is larger than the sum of its proper divisors (1).

336942509 is an equidigital number, since it uses as much as digits as its factorization.

336942509 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 174960, while the sum is 41.

The square root of 336942509 is about 18355.9938167346. The cubic root of 336942509 is about 695.8547591030.

The spelling of 336942509 in words is "three hundred thirty-six million, nine hundred forty-two thousand, five hundred nine".