916913273 has 2 divisors, whose sum is σ = 916913274. Its totient is φ = 916913272.

The previous prime is 916913237. The next prime is 916913293. The reversal of 916913273 is 372319619.

Together with previous prime (916913237) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 915244009 + 1669264 = 30253^2 + 1292^2 .

It is a cyclic number.

It is not a de Polignac number, because 916913273 - 2²² = 912718969 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 916913273.

It is not a weakly prime, because it can be changed into another prime (916913233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458456636 + 458456637.

It is an arithmetic number, because the mean of its divisors is an integer number (458456637).

Almost surely, 2^916913273 is an apocalyptic number.

It is an amenable number.

916913273 is a deficient number, since it is larger than the sum of its proper divisors (1).

916913273 is an equidigital number, since it uses as much as digits as its factorization.

916913273 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 61236, while the sum is 41.

The square root of 916913273 is about 30280.5758366647. The cubic root of 916913273 is about 971.4998842019.

The spelling of 916913273 in words is "nine hundred sixteen million, nine hundred thirteen thousand, two hundred seventy-three".