916311749 has 2 divisors, whose sum is σ = 916311750. Its totient is φ = 916311748.

The previous prime is 916311719. The next prime is 916311821. The reversal of 916311749 is 947113619.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 487614724 + 428697025 = 22082^2 + 20705^2 .

It is a cyclic number.

It is not a de Polignac number, because 916311749 - 2⁸ = 916311493 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (916311719) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458155874 + 458155875.

It is an arithmetic number, because the mean of its divisors is an integer number (458155875).

Almost surely, 2^916311749 is an apocalyptic number.

It is an amenable number.

916311749 is a deficient number, since it is larger than the sum of its proper divisors (1).

916311749 is an equidigital number, since it uses as much as digits as its factorization.

916311749 is an evil number, because the sum of its binary digits is even.

The product of its digits is 40824, while the sum is 41.

The square root of 916311749 is about 30270.6417011599. The cubic root of 916311749 is about 971.2873928824.

The spelling of 916311749 in words is "nine hundred sixteen million, three hundred eleven thousand, seven hundred forty-nine".