80843670 has 192 divisors, whose sum is σ = 245306880. Its totient is φ = 19035648.

The previous prime is 80843663. The next prime is 80843671. The reversal of 80843670 is 7634808.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80843671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 784839 + ... + 784941.

It is an arithmetic number, because the mean of its divisors is an integer number (1277640).

Almost surely, 2^80843670 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80843670, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (122653440).

80843670 is an abundant number, since it is smaller than the sum of its proper divisors (164463210).

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

80843670 is a wasteful number, since it uses less digits than its factorization.

80843670 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161 (or 149 counting only the distinct ones).

The product of its (nonzero) digits is 32256, while the sum is 36.

The square root of 80843670 is about 8991.3108054388. The cubic root of 80843670 is about 432.3963376584.

The spelling of 80843670 in words is "eighty million, eight hundred forty-three thousand, six hundred seventy".