80007700 has 18 divisors (see below), whose sum is σ = 173616926. Its totient is φ = 32003040.

The previous prime is 80007691. The next prime is 80007701. The reversal of 80007700 is 770008.

It can be written as a sum of positive squares in 3 ways, for example, as 26337424 + 53670276 = 5132^2 + 7326^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80007701) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 399939 + ... + 400138.

Almost surely, 2^80007700 is an apocalyptic number.

It is an amenable number.

80007700 is an abundant number, since it is smaller than the sum of its proper divisors (93609226).

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

80007700 is a wasteful number, since it uses less digits than its factorization.

80007700 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 800091 (or 800084 counting only the distinct ones).

The product of its (nonzero) digits is 392, while the sum is 22.

The square root of 80007700 is about 8944.7023427278. The cubic root of 80007700 is about 430.9007618521.

Adding to 80007700 its reverse (770008), we get a palindrome (80777708).

The spelling of 80007700 in words is "eighty million, seven thousand, seven hundred".