16056647 has 4 divisors (see below), whose sum is σ = 16080840. Its totient is φ = 16032456.

The previous prime is 16056643. The next prime is 16056659. The reversal of 16056647 is 74665061.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 74665061 = 23 ⋅3246307.

It is a cyclic number.

It is not a de Polignac number, because 16056647 - 2² = 16056643 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 (16056643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11072 + ... + 12437.

It is an arithmetic number, because the mean of its divisors is an integer number (4020210).

Almost surely, 2^16056647 is an apocalyptic number.

16056647 is a deficient number, since it is larger than the sum of its proper divisors (24193).

16056647 is an equidigital number, since it uses as much as digits as its factorization.

16056647 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24192.

The product of its (nonzero) digits is 30240, while the sum is 35.

The square root of 16056647 is about 4007.0746187212. The cubic root of 16056647 is about 252.2812378336.

The spelling of 16056647 in words is "sixteen million, fifty-six thousand, six hundred forty-seven".