16428011 has 2 divisors, whose sum is σ = 16428012. Its totient is φ = 16428010.

The previous prime is 16427987. The next prime is 16428023. The reversal of 16428011 is 11082461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16428011 - 2¹⁸ = 16165867 is a prime.

It is a super-2 number, since 2×16428011² = 539759090832242, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16428091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8214005 + 8214006.

It is an arithmetic number, because the mean of its divisors is an integer number (8214006).

Almost surely, 2^16428011 is an apocalyptic number.

16428011 is a deficient number, since it is larger than the sum of its proper divisors (1).

16428011 is an equidigital number, since it uses as much as digits as its factorization.

16428011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 16428011 is about 4053.1482825083. The cubic root of 16428011 is about 254.2113839563.

The spelling of 16428011 in words is "sixteen million, four hundred twenty-eight thousand, eleven".