335688649 has 2 divisors, whose sum is σ = 335688650. Its totient is φ = 335688648.

The previous prime is 335688643. The next prime is 335688653. The reversal of 335688649 is 946886533.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 262278025 + 73410624 = 16195^2 + 8568^2 .

It is a cyclic number.

It is not a de Polignac number, because 335688649 - 2²³ = 327300041 is a prime.

It is a super-2 number, since 2×335688649² = 225373738134890402, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 335688596 and 335688605.

It is not a weakly prime, because it can be changed into another prime (335688643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 167844324 + 167844325.

It is an arithmetic number, because the mean of its divisors is an integer number (167844325).

Almost surely, 2^335688649 is an apocalyptic number.

It is an amenable number.

335688649 is a deficient number, since it is larger than the sum of its proper divisors (1).

335688649 is an equidigital number, since it uses as much as digits as its factorization.

335688649 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3732480, while the sum is 52.

The square root of 335688649 is about 18321.8080166778. The cubic root of 335688649 is about 694.9905276214.

The spelling of 335688649 in words is "three hundred thirty-five million, six hundred eighty-eight thousand, six hundred forty-nine".