1335689 has 2 divisors, whose sum is σ = 1335690. Its totient is φ = 1335688.

The previous prime is 1335683. The next prime is 1335743. The reversal of 1335689 is 9865331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 824464 + 511225 = 908^2 + 715^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1335689 is a prime.

It is a plaindrome in base 10.

It is not a weakly prime, because it can be changed into another prime (1335683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 667844 + 667845.

It is an arithmetic number, because the mean of its divisors is an integer number (667845).

2^1335689 is an apocalyptic number.

It is an amenable number.

1335689 is a deficient number, since it is larger than the sum of its proper divisors (1).

1335689 is an equidigital number, since it uses as much as digits as its factorization.

1335689 is an evil number, because the sum of its binary digits is even.

The product of its digits is 19440, while the sum is 35.

The square root of 1335689 is about 1155.7201218288. The cubic root of 1335689 is about 110.1290221608.

The spelling of 1335689 in words is "one million, three hundred thirty-five thousand, six hundred eighty-nine".