16634741 has 2 divisors, whose sum is σ = 16634742. Its totient is φ = 16634740.

The previous prime is 16634731. The next prime is 16634743. The reversal of 16634741 is 14743661.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13845841 + 2788900 = 3721^2 + 1670^2 .

It is an emirp because it is prime and its reverse (14743661) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16634741 - 2¹⁰ = 16633717 is a prime.

Together with 16634743, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 16634698 and 16634707.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16634743) 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, 8317370 + 8317371.

It is an arithmetic number, because the mean of its divisors is an integer number (8317371).

Almost surely, 2^16634741 is an apocalyptic number.

It is an amenable number.

16634741 is a deficient number, since it is larger than the sum of its proper divisors (1).

16634741 is an equidigital number, since it uses as much as digits as its factorization.

16634741 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12096, while the sum is 32.

The square root of 16634741 is about 4078.5709507130. The cubic root of 16634741 is about 255.2732736156.

The spelling of 16634741 in words is "sixteen million, six hundred thirty-four thousand, seven hundred forty-one".