80286447 has 4 divisors (see below), whose sum is σ = 107048600. Its totient is φ = 53524296.

The previous prime is 80286443. The next prime is 80286463. The reversal of 80286447 is 74468208.

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

It is not a de Polignac number, because 80286447 - 2² = 80286443 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 (80286443) 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, 13381072 + ... + 13381077.

It is an arithmetic number, because the mean of its divisors is an integer number (26762150).

Almost surely, 2^80286447 is an apocalyptic number.

80286447 is a deficient number, since it is larger than the sum of its proper divisors (26762153).

80286447 is a wasteful number, since it uses less digits than its factorization.

80286447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26762152.

The product of its (nonzero) digits is 86016, while the sum is 39.

The square root of 80286447 is about 8960.2704758283. The cubic root of 80286447 is about 431.4006015489.

The spelling of 80286447 in words is "eighty million, two hundred eighty-six thousand, four hundred forty-seven".