1355703689 has 2 divisors, whose sum is σ = 1355703690. Its totient is φ = 1355703688.

The previous prime is 1355703683. The next prime is 1355703703. The reversal of 1355703689 is 9863075531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1302632464 + 53071225 = 36092^2 + 7285^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1355703689 is a prime.

It is not a weakly prime, because it can be changed into another prime (1355703683) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 677851844 + 677851845.

It is an arithmetic number, because the mean of its divisors is an integer number (677851845).

Almost surely, 2^1355703689 is an apocalyptic number.

It is an amenable number.

1355703689 is a deficient number, since it is larger than the sum of its proper divisors (1).

1355703689 is an equidigital number, since it uses as much as digits as its factorization.

1355703689 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 680400, while the sum is 47.

The square root of 1355703689 is about 36819.8817081207. The cubic root of 1355703689 is about 1106.7637493560.

The spelling of 1355703689 in words is "one billion, three hundred fifty-five million, seven hundred three thousand, six hundred eighty-nine".