80507100 has 72 divisors (see below), whose sum is σ = 235328688. Its totient is φ = 21248000.

The previous prime is 80507071. The next prime is 80507111. The reversal of 80507100 is 170508.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

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, 28972 + ... + 31628.

It is an arithmetic number, because the mean of its divisors is an integer number (3268454).

Almost surely, 2^80507100 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 80507100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (117664344).

80507100 is an abundant number, since it is smaller than the sum of its proper divisors (154821588).

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

80507100 is a wasteful number, since it uses less digits than its factorization.

80507100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2775 (or 2768 counting only the distinct ones).

The product of its (nonzero) digits is 280, while the sum is 21.

The square root of 80507100 is about 8972.5748812701. The cubic root of 80507100 is about 431.7954492860.

Adding to 80507100 its reverse (170508), we get a palindrome (80677608).

The spelling of 80507100 in words is "eighty million, five hundred seven thousand, one hundred".