16819087 has 2 divisors, whose sum is σ = 16819088. Its totient is φ = 16819086.

The previous prime is 16819067. The next prime is 16819097. The reversal of 16819087 is 78091861.

It is a strong prime.

It is an emirp because it is prime and its reverse (78091861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16819087 - 2¹¹ = 16817039 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16819057) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8409543 + 8409544.

It is an arithmetic number, because the mean of its divisors is an integer number (8409544).

Almost surely, 2^16819087 is an apocalyptic number.

16819087 is a deficient number, since it is larger than the sum of its proper divisors (1).

16819087 is an equidigital number, since it uses as much as digits as its factorization.

16819087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24192, while the sum is 40.

The square root of 16819087 is about 4101.1080210109. The cubic root of 16819087 is about 256.2127899966.

The spelling of 16819087 in words is "sixteen million, eight hundred nineteen thousand, eighty-seven".