16630819 has 2 divisors, whose sum is σ = 16630820. Its totient is φ = 16630818.

The previous prime is 16630781. The next prime is 16630829. The reversal of 16630819 is 91803661.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16630819 - 2⁹ = 16630307 is a prime.

It is a super-2 number, since 2×16630819² = 553168281221522, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16630829) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8315409 + 8315410.

It is an arithmetic number, because the mean of its divisors is an integer number (8315410).

Almost surely, 2^16630819 is an apocalyptic number.

16630819 is a deficient number, since it is larger than the sum of its proper divisors (1).

16630819 is an equidigital number, since it uses as much as digits as its factorization.

16630819 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7776, while the sum is 34.

The square root of 16630819 is about 4078.0901167090. The cubic root of 16630819 is about 255.2532099734.

The spelling of 16630819 in words is "sixteen million, six hundred thirty thousand, eight hundred nineteen".