843422864 has 10 divisors (see below), whose sum is σ = 1634131830. Its totient is φ = 421711424.

The previous prime is 843422861. The next prime is 843422893. The reversal of 843422864 is 468224348.

It can be written as a sum of positive squares in only one way, i.e., 704371600 + 139051264 = 26540^2 + 11792^2 .

It is a super-2 number, since 2×843422864² = 1422724255035924992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (843422861) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26356949 + ... + 26356980.

It is an arithmetic number, because the mean of its divisors is an integer number (163413183).

Almost surely, 2^843422864 is an apocalyptic number.

It is an amenable number.

843422864 is a deficient number, since it is larger than the sum of its proper divisors (790708966).

843422864 is a wasteful number, since it uses less digits than its factorization.

843422864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52713937 (or 52713931 counting only the distinct ones).

The product of its digits is 294912, while the sum is 41.

The square root of 843422864 is about 29041.7434738343. The cubic root of 843422864 is about 944.8186485139.

The spelling of 843422864 in words is "eight hundred forty-three million, four hundred twenty-two thousand, eight hundred sixty-four".