16332287 has 2 divisors, whose sum is σ = 16332288. Its totient is φ = 16332286.

The previous prime is 16332271. The next prime is 16332293. The reversal of 16332287 is 78223361.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16332287 - 2⁴ = 16332271 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (16332187) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8166143 + 8166144.

It is an arithmetic number, because the mean of its divisors is an integer number (8166144).

Almost surely, 2^16332287 is an apocalyptic number.

16332287 is a deficient number, since it is larger than the sum of its proper divisors (1).

16332287 is an equidigital number, since it uses as much as digits as its factorization.

16332287 is an evil number, because the sum of its binary digits is even.

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

The square root of 16332287 is about 4041.3224320759. The cubic root of 16332287 is about 253.7166690025.

The spelling of 16332287 in words is "sixteen million, three hundred thirty-two thousand, two hundred eighty-seven".