16489601 has 2 divisors, whose sum is σ = 16489602. Its totient is φ = 16489600.

The previous prime is 16489589. The next prime is 16489619. The reversal of 16489601 is 10698461.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16192576 + 297025 = 4024^2 + 545^2 .

It is an emirp because it is prime and its reverse (10698461) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 16489601 - 2¹⁴ = 16473217 is a prime.

It is a super-2 number, since 2×16489601² = 543813882278402, which contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (16489631) 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, 8244800 + 8244801.

It is an arithmetic number, because the mean of its divisors is an integer number (8244801).

Almost surely, 2^16489601 is an apocalyptic number.

It is an amenable number.

16489601 is a deficient number, since it is larger than the sum of its proper divisors (1).

16489601 is an equidigital number, since it uses as much as digits as its factorization.

16489601 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10368, while the sum is 35.

The square root of 16489601 is about 4060.7389721577. The cubic root of 16489601 is about 254.5286744156.

The spelling of 16489601 in words is "sixteen million, four hundred eighty-nine thousand, six hundred one".