3116749 has 2 divisors, whose sum is σ = 3116750. Its totient is φ = 3116748.

The previous prime is 3116747. The next prime is 3116761. The reversal of 3116749 is 9476113.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1946025 + 1170724 = 1395^2 + 1082^2 .

It is an emirp because it is prime and its reverse (9476113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 3116749 - 2¹ = 3116747 is a prime.

Together with 3116747, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 3116749.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (3116747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1558374 + 1558375.

It is an arithmetic number, because the mean of its divisors is an integer number (1558375).

Almost surely, 2^3116749 is an apocalyptic number.

It is an amenable number.

3116749 is a deficient number, since it is larger than the sum of its proper divisors (1).

3116749 is an equidigital number, since it uses as much as digits as its factorization.

3116749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4536, while the sum is 31.

The square root of 3116749 is about 1765.4316752568. The cubic root of 3116749 is about 146.0721011236.

The spelling of 3116749 in words is "three million, one hundred sixteen thousand, seven hundred forty-nine".