80487863 has 4 divisors (see below), whose sum is σ = 81028200. Its totient is φ = 79947528.

The previous prime is 80487817. The next prime is 80487899. The reversal of 80487863 is 36878408.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-80487863 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80487263) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 269945 + ... + 270242.

It is an arithmetic number, because the mean of its divisors is an integer number (20257050).

Almost surely, 2^80487863 is an apocalyptic number.

80487863 is a deficient number, since it is larger than the sum of its proper divisors (540337).

80487863 is a wasteful number, since it uses less digits than its factorization.

80487863 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 540336.

The product of its (nonzero) digits is 258048, while the sum is 44.

The square root of 80487863 is about 8971.5028284006. The cubic root of 80487863 is about 431.7610543454.

The spelling of 80487863 in words is "eighty million, four hundred eighty-seven thousand, eight hundred sixty-three".