80487787 has 16 divisors (see below), whose sum is σ = 86929920. Its totient is φ = 74333952.

The previous prime is 80487779. The next prime is 80487817. The reversal of 80487787 is 78778408.

It is a cyclic number.

It is not a de Polignac number, because 80487787 - 2³ = 80487779 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 80487787.

It is not an unprimeable number, because it can be changed into a prime (80487767) 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 15 ways as a sum of consecutive naturals, for example, 95514 + ... + 96352.

It is an arithmetic number, because the mean of its divisors is an integer number (5433120).

Almost surely, 2^80487787 is an apocalyptic number.

80487787 is a deficient number, since it is larger than the sum of its proper divisors (6442133).

80487787 is a wasteful number, since it uses less digits than its factorization.

80487787 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1002.

The product of its (nonzero) digits is 702464, while the sum is 49.

The square root of 80487787 is about 8971.4985927659. The cubic root of 80487787 is about 431.7609184498.

The spelling of 80487787 in words is "eighty million, four hundred eighty-seven thousand, seven hundred eighty-seven".