28546433 has 4 divisors (see below), whose sum is σ = 28633008. Its totient is φ = 28459860.

The previous prime is 28546409. The next prime is 28546447. The reversal of 28546433 is 33464582.

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: 33464582 = 2 ⋅16732291.

It is a cyclic number.

It is not a de Polignac number, because 28546433 - 2¹⁶ = 28480897 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 28546393 and 28546402.

It is not an unprimeable number, because it can be changed into a prime (28546403) 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, 42791 + ... + 43452.

It is an arithmetic number, because the mean of its divisors is an integer number (7158252).

Almost surely, 2^28546433 is an apocalyptic number.

It is an amenable number.

28546433 is a deficient number, since it is larger than the sum of its proper divisors (86575).

28546433 is an equidigital number, since it uses as much as digits as its factorization.

28546433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86574.

The product of its digits is 69120, while the sum is 35.

The square root of 28546433 is about 5342.8862050394. The cubic root of 28546433 is about 305.6215328945.

The spelling of 28546433 in words is "twenty-eight million, five hundred forty-six thousand, four hundred thirty-three".