16328223 has 20 divisors (see below), whose sum is σ = 24916320. Its totient is φ = 10651392.

The previous prime is 16328219. The next prime is 16328231. The reversal of 16328223 is 32282361.

16328223 is a `hidden beast` number, since 1 + 632 + 8 + 2 + 23 = 666.

It is not a de Polignac number, because 16328223 - 2² = 16328219 is a prime.

It is a super-2 number, since 2×16328223² = 533221732675458, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16328243) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1663 + ... + 5951.

It is an arithmetic number, because the mean of its divisors is an integer number (1245816).

Almost surely, 2^16328223 is an apocalyptic number.

16328223 is a deficient number, since it is larger than the sum of its proper divisors (8588097).

16328223 is an equidigital number, since it uses as much as digits as its factorization.

16328223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4348 (or 4339 counting only the distinct ones).

The product of its digits is 3456, while the sum is 27.

The square root of 16328223 is about 4040.8195950822. The cubic root of 16328223 is about 253.6956229587.

The spelling of 16328223 in words is "sixteen million, three hundred twenty-eight thousand, two hundred twenty-three".