336686729 has 2 divisors, whose sum is σ = 336686730. Its totient is φ = 336686728.

The previous prime is 336686681. The next prime is 336686737. The reversal of 336686729 is 927686633.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 329785600 + 6901129 = 18160^2 + 2627^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-336686729 is a prime.

It is a super-2 number, since 2×336686729² = 226715906969438882, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (336686759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 168343364 + 168343365.

It is an arithmetic number, because the mean of its divisors is an integer number (168343365).

Almost surely, 2^336686729 is an apocalyptic number.

It is an amenable number.

336686729 is a deficient number, since it is larger than the sum of its proper divisors (1).

336686729 is an equidigital number, since it uses as much as digits as its factorization.

336686729 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1959552, while the sum is 50.

The square root of 336686729 is about 18349.0252874642. The cubic root of 336686729 is about 695.6786353014.

The spelling of 336686729 in words is "three hundred thirty-six million, six hundred eighty-six thousand, seven hundred twenty-nine".