845975422 has 4 divisors (see below), whose sum is σ = 1268963136. Its totient is φ = 422987710.

The previous prime is 845975401. The next prime is 845975447. The reversal of 845975422 is 224579548.

It is a semiprime because it is the product of two primes.

It is a super-4 number, since 4×845975422⁴ (a number of 37 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211493854 + ... + 211493857.

It is an arithmetic number, because the mean of its divisors is an integer number (317240784).

Almost surely, 2^845975422 is an apocalyptic number.

845975422 is a deficient number, since it is larger than the sum of its proper divisors (422987714).

845975422 is a wasteful number, since it uses less digits than its factorization.

845975422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422987713.

The product of its digits is 806400, while the sum is 46.

The square root of 845975422 is about 29085.6566369061. The cubic root of 845975422 is about 945.7708302469.

The spelling of 845975422 in words is "eight hundred forty-five million, nine hundred seventy-five thousand, four hundred twenty-two".