80876587 has 4 divisors (see below), whose sum is σ = 88229016. Its totient is φ = 73524160.

The previous prime is 80876567. The next prime is 80876623. The reversal of 80876587 is 78567808.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 80876587 - 2⁷ = 80876459 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 80876587.

It is not an unprimeable number, because it can be changed into a prime (80876557) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3676198 + ... + 3676219.

It is an arithmetic number, because the mean of its divisors is an integer number (22057254).

Almost surely, 2^80876587 is an apocalyptic number.

80876587 is a deficient number, since it is larger than the sum of its proper divisors (7352429).

80876587 is a wasteful number, since it uses less digits than its factorization.

80876587 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7352428.

The product of its (nonzero) digits is 752640, while the sum is 49.

The square root of 80876587 is about 8993.1411086450. The cubic root of 80876587 is about 432.4550157586.

The spelling of 80876587 in words is "eighty million, eight hundred seventy-six thousand, five hundred eighty-seven".