845711428 has 24 divisors (see below), whose sum is σ = 1541806560. Its totient is φ = 405545280.

The previous prime is 845711417. The next prime is 845711431. The reversal of 845711428 is 824117548.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34026 + ... + 53377.

It is an arithmetic number, because the mean of its divisors is an integer number (64241940).

Almost surely, 2^845711428 is an apocalyptic number.

It is an amenable number.

845711428 is a deficient number, since it is larger than the sum of its proper divisors (696095132).

845711428 is a wasteful number, since it uses less digits than its factorization.

845711428 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87507 (or 87505 counting only the distinct ones).

The product of its digits is 71680, while the sum is 40.

The square root of 845711428 is about 29081.1180665393. The cubic root of 845711428 is about 945.6724413363.

The spelling of 845711428 in words is "eight hundred forty-five million, seven hundred eleven thousand, four hundred twenty-eight".