845789434 has 16 divisors (see below), whose sum is σ = 1450684800. Its totient is φ = 362291184.

The previous prime is 845789431. The next prime is 845789459. The reversal of 845789434 is 434987548.

It is not an unprimeable number, because it can be changed into a prime (845789431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13732 + ... + 43360.

It is an arithmetic number, because the mean of its divisors is an integer number (90667800).

Almost surely, 2^845789434 is an apocalyptic number.

845789434 is a deficient number, since it is larger than the sum of its proper divisors (604895366).

845789434 is a wasteful number, since it uses less digits than its factorization.

845789434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31677.

The product of its digits is 3870720, while the sum is 52.

The square root of 845789434 is about 29082.4592151352. The cubic root of 845789434 is about 945.7015158150.

The spelling of 845789434 in words is "eight hundred forty-five million, seven hundred eighty-nine thousand, four hundred thirty-four".