16479889 has 2 divisors, whose sum is σ = 16479890. Its totient is φ = 16479888.

The previous prime is 16479871. The next prime is 16479913. The reversal of 16479889 is 98897461.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 16443025 + 36864 = 4055^2 + 192^2 .

It is a cyclic number.

It is not a de Polignac number, because 16479889 - 2¹¹ = 16477841 is a prime.

It is not a weakly prime, because it can be changed into another prime (16479839) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8239944 + 8239945.

It is an arithmetic number, because the mean of its divisors is an integer number (8239945).

Almost surely, 2^16479889 is an apocalyptic number.

It is an amenable number.

16479889 is a deficient number, since it is larger than the sum of its proper divisors (1).

16479889 is an equidigital number, since it uses as much as digits as its factorization.

16479889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 870912, while the sum is 52.

The square root of 16479889 is about 4059.5429545701. The cubic root of 16479889 is about 254.4786940683.

The spelling of 16479889 in words is "sixteen million, four hundred seventy-nine thousand, eight hundred eighty-nine".