312608899 has 2 divisors, whose sum is σ = 312608900. Its totient is φ = 312608898.

The previous prime is 312608897. The next prime is 312608917. The reversal of 312608899 is 998806213.

It is a weak prime.

It is an emirp because it is prime and its reverse (998806213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 312608899 - 2¹ = 312608897 is a prime.

Together with 312608897, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (312608897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156304449 + 156304450.

It is an arithmetic number, because the mean of its divisors is an integer number (156304450).

Almost surely, 2^312608899 is an apocalyptic number.

312608899 is a deficient number, since it is larger than the sum of its proper divisors (1).

312608899 is an equidigital number, since it uses as much as digits as its factorization.

312608899 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 186624, while the sum is 46.

The square root of 312608899 is about 17680.7493902266. The cubic root of 312608899 is about 678.6832209579.

The spelling of 312608899 in words is "three hundred twelve million, six hundred eight thousand, eight hundred ninety-nine".