80693900 has 72 divisors (see below), whose sum is σ = 211923936. Its totient is φ = 26035200.

The previous prime is 80693881. The next prime is 80693909. The reversal of 80693900 is 939608.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (80693909) 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, 8510 + ... + 15290.

It is an arithmetic number, because the mean of its divisors is an integer number (2943388).

Almost surely, 2^80693900 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 80693900, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (105961968).

80693900 is an abundant number, since it is smaller than the sum of its proper divisors (131230036).

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

80693900 is a wasteful number, since it uses less digits than its factorization.

80693900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6819 (or 6812 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 35.

The square root of 80693900 is about 8982.9783479646. The cubic root of 80693900 is about 432.1291551983.

The spelling of 80693900 in words is "eighty million, six hundred ninety-three thousand, nine hundred".