80412863 has 4 divisors (see below), whose sum is σ = 80599008. Its totient is φ = 80226720.

The previous prime is 80412859. The next prime is 80412869. The reversal of 80412863 is 36821408.

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 80412863 - 2² = 80412859 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 (80412869) 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 3 ways as a sum of consecutive naturals, for example, 92423 + ... + 93288.

It is an arithmetic number, because the mean of its divisors is an integer number (20149752).

Almost surely, 2^80412863 is an apocalyptic number.

80412863 is a deficient number, since it is larger than the sum of its proper divisors (186145).

80412863 is a wasteful number, since it uses less digits than its factorization.

80412863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 186144.

The product of its (nonzero) digits is 9216, while the sum is 32.

The square root of 80412863 is about 8967.3219525118. The cubic root of 80412863 is about 431.6269051659.

The spelling of 80412863 in words is "eighty million, four hundred twelve thousand, eight hundred sixty-three".