16087969 has 2 divisors, whose sum is σ = 16087970. Its totient is φ = 16087968.

The previous prime is 16087921. The next prime is 16087997. The reversal of 16087969 is 96978061.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 15210000 + 877969 = 3900^2 + 937^2 .

It is a cyclic number.

It is not a de Polignac number, because 16087969 - 2¹¹ = 16085921 is a prime.

It is a super-2 number, since 2×16087969² = 517645493089922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16087769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8043984 + 8043985.

It is an arithmetic number, because the mean of its divisors is an integer number (8043985).

Almost surely, 2^16087969 is an apocalyptic number.

It is an amenable number.

16087969 is a deficient number, since it is larger than the sum of its proper divisors (1).

16087969 is an equidigital number, since it uses as much as digits as its factorization.

16087969 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 163296, while the sum is 46.

The square root of 16087969 is about 4010.9810520620. The cubic root of 16087969 is about 252.4451745162.

The spelling of 16087969 in words is "sixteen million, eighty-seven thousand, nine hundred sixty-nine".