16330247 has 4 divisors (see below), whose sum is σ = 16362840. Its totient is φ = 16297656.

The previous prime is 16330243. The next prime is 16330261. The reversal of 16330247 is 74203361.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 16330247 - 2² = 16330243 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16330243) 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 in 3 ways as a sum of consecutive naturals, for example, 15533 + ... + 16550.

It is an arithmetic number, because the mean of its divisors is an integer number (4090710).

Almost surely, 2^16330247 is an apocalyptic number.

16330247 is a deficient number, since it is larger than the sum of its proper divisors (32593).

16330247 is an equidigital number, since it uses as much as digits as its factorization.

16330247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32592.

The product of its (nonzero) digits is 3024, while the sum is 26.

The square root of 16330247 is about 4041.0700315634. The cubic root of 16330247 is about 253.7061049878.

The spelling of 16330247 in words is "sixteen million, three hundred thirty thousand, two hundred forty-seven".