16428833 has 4 divisors (see below), whose sum is σ = 16489728. Its totient is φ = 16367940.

The previous prime is 16428829. The next prime is 16428857. The reversal of 16428833 is 33882461.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33882461 = 59 ⋅574279.

It is a cyclic number.

It is not a de Polignac number, because 16428833 - 2² = 16428829 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 16428793 and 16428802.

It is not an unprimeable number, because it can be changed into a prime (16428133) 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, 30041 + ... + 30582.

It is an arithmetic number, because the mean of its divisors is an integer number (4122432).

Almost surely, 2^16428833 is an apocalyptic number.

It is an amenable number.

16428833 is a deficient number, since it is larger than the sum of its proper divisors (60895).

16428833 is an equidigital number, since it uses as much as digits as its factorization.

16428833 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60894.

The product of its digits is 27648, while the sum is 35.

The square root of 16428833 is about 4053.2496838956. The cubic root of 16428833 is about 254.2156238340.

The spelling of 16428833 in words is "sixteen million, four hundred twenty-eight thousand, eight hundred thirty-three".