1696116749 has 2 divisors, whose sum is σ = 1696116750. Its totient is φ = 1696116748.

The previous prime is 1696116713. The next prime is 1696116769. The reversal of 1696116749 is 9476116961.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1029960649 + 666156100 = 32093^2 + 25810^2 .

It is an emirp because it is prime and its reverse (9476116961) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1696116749 - 2¹⁶ = 1696051213 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1696116697 and 1696116706.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1696116769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 848058374 + 848058375.

It is an arithmetic number, because the mean of its divisors is an integer number (848058375).

Almost surely, 2^1696116749 is an apocalyptic number.

It is an amenable number.

1696116749 is a deficient number, since it is larger than the sum of its proper divisors (1).

1696116749 is an equidigital number, since it uses as much as digits as its factorization.

1696116749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 489888, while the sum is 50.

The square root of 1696116749 is about 41183.9379977195. The cubic root of 1696116749 is about 1192.5737550322.

The spelling of 1696116749 in words is "one billion, six hundred ninety-six million, one hundred sixteen thousand, seven hundred forty-nine".