80507810 has 16 divisors (see below), whose sum is σ = 145179000. Its totient is φ = 32144256.

The previous prime is 80507809. The next prime is 80507813. The reversal of 80507810 is 1870508.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 69372241 + 11135569 = 8329^2 + 3337^2 .

It is a super-2 number, since 2×80507810² = 12963014941992200, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (80507813) 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 7 ways as a sum of consecutive naturals, for example, 1385 + ... + 12764.

Almost surely, 2^80507810 is an apocalyptic number.

80507810 is a deficient number, since it is larger than the sum of its proper divisors (64671190).

80507810 is a wasteful number, since it uses less digits than its factorization.

80507810 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14725.

The product of its (nonzero) digits is 2240, while the sum is 29.

The square root of 80507810 is about 8972.6144461913. The cubic root of 80507810 is about 431.7967186310.

The spelling of 80507810 in words is "eighty million, five hundred seven thousand, eight hundred ten".