916709999 has 2 divisors, whose sum is σ = 916710000. Its totient is φ = 916709998.

The previous prime is 916709987. The next prime is 916710001. The reversal of 916709999 is 999907619.

It is a strong prime.

It is an emirp because it is prime and its reverse (999907619) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 916709999 - 2¹² = 916705903 is a prime.

Together with 916710001, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (916709909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 458354999 + 458355000.

It is an arithmetic number, because the mean of its divisors is an integer number (458355000).

Almost surely, 2^916709999 is an apocalyptic number.

916709999 is a deficient number, since it is larger than the sum of its proper divisors (1).

916709999 is an equidigital number, since it uses as much as digits as its factorization.

916709999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2480058, while the sum is 59.

The square root of 916709999 is about 30277.2191424510. The cubic root of 916709999 is about 971.4280870580.

The spelling of 916709999 in words is "nine hundred sixteen million, seven hundred nine thousand, nine hundred ninety-nine".