16812899 has 2 divisors, whose sum is σ = 16812900. Its totient is φ = 16812898.

The previous prime is 16812893. The next prime is 16812907. The reversal of 16812899 is 99821861.

It is a weak prime.

It is an emirp because it is prime and its reverse (99821861) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16812899 is a prime.

It is not a weakly prime, because it can be changed into another prime (16812893) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8406449 + 8406450.

It is an arithmetic number, because the mean of its divisors is an integer number (8406450).

Almost surely, 2^16812899 is an apocalyptic number.

16812899 is a deficient number, since it is larger than the sum of its proper divisors (1).

16812899 is an equidigital number, since it uses as much as digits as its factorization.

16812899 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 62208, while the sum is 44.

The square root of 16812899 is about 4100.3535213442. The cubic root of 16812899 is about 256.1813646043.

The spelling of 16812899 in words is "sixteen million, eight hundred twelve thousand, eight hundred ninety-nine".