16311877 has 2 divisors, whose sum is σ = 16311878. Its totient is φ = 16311876.

The previous prime is 16311851. The next prime is 16311881. The reversal of 16311877 is 77811361.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8946081 + 7365796 = 2991^2 + 2714^2 .

It is an emirp because it is prime and its reverse (77811361) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16311877 - 2¹⁹ = 15787589 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16311277) 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, 8155938 + 8155939.

It is an arithmetic number, because the mean of its divisors is an integer number (8155939).

Almost surely, 2^16311877 is an apocalyptic number.

It is an amenable number.

16311877 is a deficient number, since it is larger than the sum of its proper divisors (1).

16311877 is an equidigital number, since it uses as much as digits as its factorization.

16311877 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056, while the sum is 34.

The square root of 16311877 is about 4038.7964791507. The cubic root of 16311877 is about 253.6109374170.

The spelling of 16311877 in words is "sixteen million, three hundred eleven thousand, eight hundred seventy-seven".