16881077 has 2 divisors, whose sum is σ = 16881078. Its totient is φ = 16881076.

The previous prime is 16881061. The next prime is 16881097. The reversal of 16881077 is 77018861.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12327121 + 4553956 = 3511^2 + 2134^2 .

It is an emirp because it is prime and its reverse (77018861) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16881077 - 2⁴ = 16881061 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16881077.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16881047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8440538 + 8440539.

It is an arithmetic number, because the mean of its divisors is an integer number (8440539).

Almost surely, 2^16881077 is an apocalyptic number.

It is an amenable number.

16881077 is a deficient number, since it is larger than the sum of its proper divisors (1).

16881077 is an equidigital number, since it uses as much as digits as its factorization.

16881077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18816, while the sum is 38.

The square root of 16881077 is about 4108.6587835935. The cubic root of 16881077 is about 256.5271780065.

The spelling of 16881077 in words is "sixteen million, eight hundred eighty-one thousand, seventy-seven".