845250805 has 32 divisors (see below), whose sum is σ = 1248657408. Its totient is φ = 536500800.

The previous prime is 845250803. The next prime is 845250877. The reversal of 845250805 is 508052548.

It is not a de Polignac number, because 845250805 - 2¹ = 845250803 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (845250803) by changing a digit.

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 in 31 ways as a sum of consecutive naturals, for example, 8020 + ... + 41890.

It is an arithmetic number, because the mean of its divisors is an integer number (39020544).

Almost surely, 2^845250805 is an apocalyptic number.

It is an amenable number.

845250805 is a deficient number, since it is larger than the sum of its proper divisors (403406603).

845250805 is a wasteful number, since it uses less digits than its factorization.

845250805 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33937.

The product of its (nonzero) digits is 64000, while the sum is 37.

The square root of 845250805 is about 29073.1973645831. The cubic root of 845250805 is about 945.5007209873.

The spelling of 845250805 in words is "eight hundred forty-five million, two hundred fifty thousand, eight hundred five".