80343700 has 72 divisors (see below), whose sum is σ = 186363072. Its totient is φ = 29959680.

The previous prime is 80343691. The next prime is 80343701. The reversal of 80343700 is 734308.

It is a super-2 number, since 2×80343700² = 12910220259380000, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80343701) 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 23 ways as a sum of consecutive naturals, for example, 283759 + ... + 284041.

It is an arithmetic number, because the mean of its divisors is an integer number (2588376).

Almost surely, 2^80343700 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 80343700, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (93181536).

80343700 is an abundant number, since it is smaller than the sum of its proper divisors (106019372).

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

80343700 is a wasteful number, since it uses less digits than its factorization.

80343700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481 (or 474 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 80343700 is about 8963.4647318992. The cubic root of 80343700 is about 431.5031224221.

The spelling of 80343700 in words is "eighty million, three hundred forty-three thousand, seven hundred".