16408699 has 2 divisors, whose sum is σ = 16408700. Its totient is φ = 16408698.

The previous prime is 16408697. The next prime is 16408709. The reversal of 16408699 is 99680461.

It is a weak prime.

It is an emirp because it is prime and its reverse (99680461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16408699 - 2¹ = 16408697 is a prime.

Together with 16408697, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (16408697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8204349 + 8204350.

It is an arithmetic number, because the mean of its divisors is an integer number (8204350).

Almost surely, 2^16408699 is an apocalyptic number.

16408699 is a deficient number, since it is larger than the sum of its proper divisors (1).

16408699 is an equidigital number, since it uses as much as digits as its factorization.

16408699 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 16408699 is about 4050.7652363473. The cubic root of 16408699 is about 254.1117319000. Note that the first 3 decimals are identical.

The spelling of 16408699 in words is "sixteen million, four hundred eight thousand, six hundred ninety-nine".