16223047 has 4 divisors (see below), whose sum is σ = 16294120. Its totient is φ = 16151976.

The previous prime is 16223041. The next prime is 16223063. The reversal of 16223047 is 74032261.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-16223047 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 (16223041) 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, 35193 + ... + 35650.

It is an arithmetic number, because the mean of its divisors is an integer number (4073530).

Almost surely, 2^16223047 is an apocalyptic number.

16223047 is a deficient number, since it is larger than the sum of its proper divisors (71073).

16223047 is an equidigital number, since it uses as much as digits as its factorization.

16223047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71072.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 16223047 is about 4027.7843785387. The cubic root of 16223047 is about 253.1497340460.

The spelling of 16223047 in words is "sixteen million, two hundred twenty-three thousand, forty-seven".