69805028 has 12 divisors (see below), whose sum is σ = 124464060. Its totient is φ = 34243872.

The previous prime is 69805027. The next prime is 69805061. The reversal of 69805028 is 82050896.

It can be written as a sum of positive squares in 2 ways, for example, as 37063744 + 32741284 = 6088^2 + 5722^2 .

It is a junction number, because it is equal to n+sod(n) for n = 69804982 and 69805000.

It is not an unprimeable number, because it can be changed into a prime (69805027) 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, 164423 + ... + 164846.

It is an arithmetic number, because the mean of its divisors is an integer number (10372005).

Almost surely, 2^69805028 is an apocalyptic number.

It is an amenable number.

69805028 is a deficient number, since it is larger than the sum of its proper divisors (54659032).

69805028 is a wasteful number, since it uses less digits than its factorization.

69805028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 329326 (or 329324 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 38.

The square root of 69805028 is about 8354.9403349156. The cubic root of 69805028 is about 411.7455383491.

The spelling of 69805028 in words is "sixty-nine million, eight hundred five thousand, twenty-eight".