80866463 has 4 divisors (see below), whose sum is σ = 80964840. Its totient is φ = 80768088.

The previous prime is 80866453. The next prime is 80866469. The reversal of 80866463 is 36466808.

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 80866463 - 2¹⁶ = 80800927 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 80866463.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (80866469) 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, 47945 + ... + 49602.

It is an arithmetic number, because the mean of its divisors is an integer number (20241210).

Almost surely, 2^80866463 is an apocalyptic number.

80866463 is a deficient number, since it is larger than the sum of its proper divisors (98377).

80866463 is an equidigital number, since it uses as much as digits as its factorization.

80866463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98376.

The product of its (nonzero) digits is 165888, while the sum is 41.

The square root of 80866463 is about 8992.5782176192. The cubic root of 80866463 is about 432.4369703331.

The spelling of 80866463 in words is "eighty million, eight hundred sixty-six thousand, four hundred sixty-three".