845193028 has 6 divisors (see below), whose sum is σ = 1479087806. Its totient is φ = 422596512.

The previous prime is 845192987. The next prime is 845193031. The reversal of 845193028 is 820391548.

It can be written as a sum of positive squares in only one way, i.e., 840536064 + 4656964 = 28992^2 + 2158^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105649125 + ... + 105649132.

Almost surely, 2^845193028 is an apocalyptic number.

It is an amenable number.

845193028 is a deficient number, since it is larger than the sum of its proper divisors (633894778).

845193028 is a wasteful number, since it uses less digits than its factorization.

845193028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 211298261 (or 211298259 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 40.

The square root of 845193028 is about 29072.2037004421. The cubic root of 845193028 is about 945.4791773068.

The spelling of 845193028 in words is "eight hundred forty-five million, one hundred ninety-three thousand, twenty-eight".