80207005 has 4 divisors (see below), whose sum is σ = 96248412. Its totient is φ = 64165600.

The previous prime is 80206991. The next prime is 80207063. The reversal of 80207005 is 50070208.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21132409 + 59074596 = 4597^2 + 7686^2 .

It is not a de Polignac number, because 80207005 - 2⁷ = 80206877 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8020696 + ... + 8020705.

It is an arithmetic number, because the mean of its divisors is an integer number (24062103).

Almost surely, 2^80207005 is an apocalyptic number.

It is an amenable number.

80207005 is a deficient number, since it is larger than the sum of its proper divisors (16041407).

80207005 is a wasteful number, since it uses less digits than its factorization.

80207005 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16041406.

The product of its (nonzero) digits is 560, while the sum is 22.

The square root of 80207005 is about 8955.8363651867. The cubic root of 80207005 is about 431.2582668723.

The spelling of 80207005 in words is "eighty million, two hundred seven thousand, five".