843220896 has 48 divisors (see below), whose sum is σ = 2529664704. Its totient is φ = 240920064.

The previous prime is 843220853. The next prime is 843220897. The reversal of 843220896 is 698022348.

It is a tau number, because it is divible by the number of its divisors (48).

It is a super-2 number, since 2×843220896² = 1422042958902085632, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is not an unprimeable number, because it can be changed into a prime (843220897) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 626725 + ... + 628068.

It is an arithmetic number, because the mean of its divisors is an integer number (52701348).

Almost surely, 2^843220896 is an apocalyptic number.

It is an amenable number.

843220896 is an abundant number, since it is smaller than the sum of its proper divisors (1686443808).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

843220896 is a wasteful number, since it uses less digits than its factorization.

843220896 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1254813 (or 1254805 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 42.

The square root of 843220896 is about 29038.2660639371. The cubic root of 843220896 is about 944.7432263366.

The spelling of 843220896 in words is "eight hundred forty-three million, two hundred twenty thousand, eight hundred ninety-six".