166828033 has 4 divisors (see below), whose sum is σ = 166861908. Its totient is φ = 166794160.

The previous prime is 166828027. The next prime is 166828049. The reversal of 166828033 is 330828661.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 330828661 = 1201 ⋅275461.

It can be written as a sum of positive squares in 2 ways, for example, as 95121009 + 71707024 = 9753^2 + 8468^2 .

It is a cyclic number.

It is not a de Polignac number, because 166828033 - 2¹³ = 166819841 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 166827983 and 166828001.

It is not an unprimeable number, because it can be changed into a prime (166828073) 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, 7966 + ... + 19927.

It is an arithmetic number, because the mean of its divisors is an integer number (41715477).

Almost surely, 2^166828033 is an apocalyptic number.

It is an amenable number.

166828033 is a deficient number, since it is larger than the sum of its proper divisors (33875).

166828033 is an equidigital number, since it uses as much as digits as its factorization.

166828033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33874.

The product of its (nonzero) digits is 41472, while the sum is 37.

The square root of 166828033 is about 12916.1926665717. The cubic root of 166828033 is about 550.4987574915.

The spelling of 166828033 in words is "one hundred sixty-six million, eight hundred twenty-eight thousand, thirty-three".