16228819 has 2 divisors, whose sum is σ = 16228820. Its totient is φ = 16228818.

The previous prime is 16228813. The next prime is 16228853. The reversal of 16228819 is 91882261.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16228819 - 2⁵ = 16228787 is a prime.

It is a super-2 number, since 2×16228819² = 526749132269522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16228813) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8114409 + 8114410.

It is an arithmetic number, because the mean of its divisors is an integer number (8114410).

Almost surely, 2^16228819 is an apocalyptic number.

16228819 is a deficient number, since it is larger than the sum of its proper divisors (1).

16228819 is an equidigital number, since it uses as much as digits as its factorization.

16228819 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 13824, while the sum is 37.

The square root of 16228819 is about 4028.5008377807. The cubic root of 16228819 is about 253.1797532117.

The spelling of 16228819 in words is "sixteen million, two hundred twenty-eight thousand, eight hundred nineteen".