916278697 has 2 divisors, whose sum is σ = 916278698. Its totient is φ = 916278696.

The previous prime is 916278659. The next prime is 916278703. The reversal of 916278697 is 796872619.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 884705536 + 31573161 = 29744^2 + 5619^2 .

It is a cyclic number.

It is not a de Polignac number, because 916278697 - 2¹⁹ = 915754409 is a prime.

It is not a weakly prime, because it can be changed into another prime (916278617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458139348 + 458139349.

It is an arithmetic number, because the mean of its divisors is an integer number (458139349).

Almost surely, 2^916278697 is an apocalyptic number.

It is an amenable number.

916278697 is a deficient number, since it is larger than the sum of its proper divisors (1).

916278697 is an equidigital number, since it uses as much as digits as its factorization.

916278697 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2286144, while the sum is 55.

The square root of 916278697 is about 30270.0957547214. The cubic root of 916278697 is about 971.2757144055.

The spelling of 916278697 in words is "nine hundred sixteen million, two hundred seventy-eight thousand, six hundred ninety-seven".