16436891 has 2 divisors, whose sum is σ = 16436892. Its totient is φ = 16436890.

The previous prime is 16436863. The next prime is 16436911. The reversal of 16436891 is 19863461.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16436891 - 2¹⁴ = 16420507 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (16436821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8218445 + 8218446.

It is an arithmetic number, because the mean of its divisors is an integer number (8218446).

Almost surely, 2^16436891 is an apocalyptic number.

16436891 is a deficient number, since it is larger than the sum of its proper divisors (1).

16436891 is an equidigital number, since it uses as much as digits as its factorization.

16436891 is an evil number, because the sum of its binary digits is even.

The product of its digits is 31104, while the sum is 38.

The square root of 16436891 is about 4054.2435792636. The cubic root of 16436891 is about 254.2571795281.

The spelling of 16436891 in words is "sixteen million, four hundred thirty-six thousand, eight hundred ninety-one".