16216847 has 4 divisors (see below), whose sum is σ = 16310760. Its totient is φ = 16122936.

The previous prime is 16216831. The next prime is 16216873. The reversal of 16216847 is 74861261.

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 16216847 - 2⁴ = 16216831 is a prime.

It is a super-2 number, since 2×16216847² = 525972253242818, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16216807) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46697 + ... + 47042.

It is an arithmetic number, because the mean of its divisors is an integer number (4077690).

Almost surely, 2^16216847 is an apocalyptic number.

16216847 is a deficient number, since it is larger than the sum of its proper divisors (93913).

16216847 is an equidigital number, since it uses as much as digits as its factorization.

16216847 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93912.

The product of its digits is 16128, while the sum is 35.

The square root of 16216847 is about 4027.0146510784. The cubic root of 16216847 is about 253.1174809939.

The spelling of 16216847 in words is "sixteen million, two hundred sixteen thousand, eight hundred forty-seven".