80587940 has 12 divisors (see below), whose sum is σ = 169234716. Its totient is φ = 32235168.

The previous prime is 80587889. The next prime is 80587967. The reversal of 80587940 is 4978508.

It can be written as a sum of positive squares in 2 ways, for example, as 56460196 + 24127744 = 7514^2 + 4912^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

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 3 ways as a sum of consecutive naturals, for example, 2014679 + ... + 2014718.

It is an arithmetic number, because the mean of its divisors is an integer number (14102893).

Almost surely, 2^80587940 is an apocalyptic number.

It is an amenable number.

80587940 is an abundant number, since it is smaller than the sum of its proper divisors (88646776).

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

80587940 is a wasteful number, since it uses less digits than its factorization.

80587940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4029406 (or 4029404 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 41.

The square root of 80587940 is about 8977.0785893853. The cubic root of 80587940 is about 431.9399279182.

The spelling of 80587940 in words is "eighty million, five hundred eighty-seven thousand, nine hundred forty".