16811087 has 2 divisors, whose sum is σ = 16811088. Its totient is φ = 16811086.

The previous prime is 16811071. The next prime is 16811129. The reversal of 16811087 is 78011861.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 16811087 - 2⁴ = 16811071 is a prime.

It is a super-2 number, since 2×16811087² = 565225292243138, which contains 22 as substring.

It is a Chen prime.

It is equal to p_1079924 and since 16811087 and 1079924 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16811027) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8405543 + 8405544.

It is an arithmetic number, because the mean of its divisors is an integer number (8405544).

Almost surely, 2^16811087 is an apocalyptic number.

16811087 is a deficient number, since it is larger than the sum of its proper divisors (1).

16811087 is an equidigital number, since it uses as much as digits as its factorization.

16811087 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2688, while the sum is 32.

The square root of 16811087 is about 4100.1325588327. The cubic root of 16811087 is about 256.1721610099.

The spelling of 16811087 in words is "sixteen million, eight hundred eleven thousand, eighty-seven".